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#1
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I sit here bored out of my skull with nothing to do but play Solitaire
until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
#2
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On 05/12/2016 02:51 PM, Jim Thompson wrote:
I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson How about writing that book I've been bugging you about? Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
#3
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On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs
wrote: On 05/12/2016 02:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson How about writing that book I've been bugging you about? Cheers Phil Hobbs I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | The touchstone of liberalism is intolerance |
#4
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On 05/12/2016 03:11 PM, Jim Thompson wrote:
On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: On 05/12/2016 02:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson How about writing that book I've been bugging you about? Cheers Phil Hobbs I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) ...Jim Thompson Start with some examples, and write them as you go along. I find that writing or rewriting sections when I'm actually doing the task described improves them greatly. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
#5
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Jim Thompson
Wrote in message: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board. What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units. -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#6
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On Thu, 12 May 2016 17:12:48 -0400 (EDT), bitrex
wrote: Jim Thompson Wrote in message: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board. What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units. I'm sure I could replicate the chip, but I don't do PCB layout, that's another skillset altogether. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | The touchstone of liberalism is intolerance |
#7
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Jim Thompson
Wrote in message: On Thu, 12 May 2016 17:12:48 -0400 (EDT), bitrex wrote: Jim Thompson Wrote in message: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board. What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units. I'm sure I could replicate the chip, but I don't do PCB layout, that's another skillset altogether. ...Jim Thompson Good thing I've got that skillset. ; ) I wonder it the required components could be squeezed into a daughterboard that would fit the space available. Might require some vertical mounting hack. -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#8
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On 5/12/2016 2:51 PM, Jim Thompson wrote:
I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Jim, go buy a fishing pole. |
#9
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On 05/12/2016 08:42 PM, Tom Biasi wrote:
On 5/12/2016 2:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Jim, go buy a fishing pole. That would rather involve water. Jim lives in the outskirts of Phoenix. Cheers Phil Hobbs |
#10
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On 5/12/2016 8:50 PM, Phil Hobbs wrote:
On 05/12/2016 08:42 PM, Tom Biasi wrote: On 5/12/2016 2:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Jim, go buy a fishing pole. That would rather involve water. Jim lives in the outskirts of Phoenix. Cheers Phil Hobbs He's got time to take a ride. I think you got the gist of my comment. |
#11
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Jim Thompson wrote:
On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. |
#12
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On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso"
wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | The touchstone of liberalism is intolerance |
#13
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Jim Thompson wrote:
On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) Well then just pretend that he's going to be an engineer and not a goalie. |
#14
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On Mon, 16 May 2016 07:29:45 -0400, "Tom Del Rosso"
wrote: Jim Thompson wrote: On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) Well then just pretend that he's going to be an engineer and not a goalie. He's super with math, and loves the circuit lab upgrade I gave him at Christmas. But he's struggling with reading... a bit of dyslexia... time to hire a tutor (I would do it, but he needs an authoritarian type to keep him from deviating from work and controlling the conversation... he's a charmer... seeks out the girls in the crowd... and he's only 8 ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | Liberalism: Dictatorship By The People Who Think They Know Best |
#15
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Jim Thompson wrote:
On Mon, 16 May 2016 07:29:45 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) Well then just pretend that he's going to be an engineer and not a goalie. He's super with math, and loves the circuit lab upgrade I gave him at Christmas. But he's struggling with reading... a bit of dyslexia... time to hire a tutor (I would do it, but he needs an authoritarian type to keep him from deviating from work and controlling the conversation... he's a charmer... seeks out the girls in the crowd... and he's only 8 ;-) I first kissed a girl at 7, and was made fun of more for that than for doing experiments. |
#16
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On Mon, 16 May 2016 11:22:24 -0400, "Tom Del Rosso"
wrote: Jim Thompson wrote: On Mon, 16 May 2016 07:29:45 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) Well then just pretend that he's going to be an engineer and not a goalie. He's super with math, and loves the circuit lab upgrade I gave him at Christmas. But he's struggling with reading... a bit of dyslexia... time to hire a tutor (I would do it, but he needs an authoritarian type to keep him from deviating from work and controlling the conversation... he's a charmer... seeks out the girls in the crowd... and he's only 8 ;-) I first kissed a girl at 7, and was made fun of more for that than for doing experiments. Today, you'd be expelled (for either). |
#17
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On 5/16/2016 9:22 AM, Jim Thompson wrote:
On Mon, 16 May 2016 07:29:45 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Fri, 13 May 2016 09:11:16 -0400, "Tom Del Rosso" wrote: Jim Thompson wrote: On Thu, 12 May 2016 15:09:45 -0400, Phil Hobbs wrote: How about writing that book I've been bugging you about? I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that. Or occupy your time by riding a bike over the Himalayas like Pease did. Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) Well then just pretend that he's going to be an engineer and not a goalie. He's super with math, and loves the circuit lab upgrade I gave him at Christmas. But he's struggling with reading... a bit of dyslexia... time to hire a tutor (I would do it, but he needs an authoritarian type to keep him from deviating from work and controlling the conversation... he's a charmer... seeks out the girls in the crowd... and he's only 8 ;-) ...Jim Thompson Maybe he is gay. At that age, I doubt he is horny. |
#18
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bitrex wrote:
In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board. What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units. I wonder it the required components could be squeezed into a daughterboard that would fit the space available. Might require some vertical mounting hack. The amps in old Tek scopes also go bad, and there's a market for replacing them too. I suggested years ago that somebody should make a DIP module to replace them. Today's standard op-amps could do it I bet. |
#19
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On 06/04/2016 09:41 AM, Tom Del Rosso wrote:
bitrex wrote: In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board. What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units. I wonder it the required components could be squeezed into a daughterboard that would fit the space available. Might require some vertical mounting hack. The amps in old Tek scopes also go bad, and there's a market for replacing them too. I suggested years ago that somebody should make a DIP module to replace them. Today's standard op-amps could do it I bet. A lot of Tek scopes use weirdly high supply voltages. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
#20
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On 5/12/2016 1:51 PM, Jim Thompson wrote:
I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek |
#21
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On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote:
On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. |
#22
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On 6/14/2016 7:55 AM, Jim Thompson wrote:
On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek |
#23
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On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote:
On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. |
#24
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Posted to sci.electronics.design,sci.electronics.basics,alt.binaries.schematics.electronic
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On 6/21/2016 10:45 AM, Jim Thompson wrote:
On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote: On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek |
#25
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Posted to sci.electronics.design,sci.electronics.basics,alt.binaries.schematics.electronic
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On Tue, 21 Jun 2016 12:39:57 -0500, amdx wrote:
On 6/21/2016 10:45 AM, Jim Thompson wrote: On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote: On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yep. Works for radio, but not so well for TV movies which can have significant pauses between speaking... thus the volume runs up and down. One reviewer of your selection comments short attack (good), short decay (bad). Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. |
#26
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Posted to sci.electronics.design,sci.electronics.basics,alt.binaries.schematics.electronic
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On 6/21/2016 1:37 PM, Jim Thompson wrote:
On Tue, 21 Jun 2016 12:39:57 -0500, amdx wrote: On 6/21/2016 10:45 AM, Jim Thompson wrote: On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote: On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yep. Works for radio, but not so well for TV movies which can have significant pauses between speaking... thus the volume runs up and down. One reviewer of your selection comments short attack (good), short decay (bad). I noted that, also saw it was the only review like that. If it is objectionable, I'll return it, if it works reasonably well it can always be tweaked. If it wasn't for buying enclosures, variable resistors and connectors, it would be cheap to build. :-) There is a schematic online, although someone said it has a few errors. Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek ...Jim Thompson |
#27
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Posted to sci.electronics.design,sci.electronics.basics,alt.binaries.schematics.electronic
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On Tue, 21 Jun 2016 15:32:35 -0500, amdx wrote:
On 6/21/2016 1:37 PM, Jim Thompson wrote: On Tue, 21 Jun 2016 12:39:57 -0500, amdx wrote: On 6/21/2016 10:45 AM, Jim Thompson wrote: On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote: On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yep. Works for radio, but not so well for TV movies which can have significant pauses between speaking... thus the volume runs up and down. One reviewer of your selection comments short attack (good), short decay (bad). I noted that, also saw it was the only review like that. If it is objectionable, I'll return it, if it works reasonably well it can always be tweaked. If it wasn't for buying enclosures, variable resistors and connectors, it would be cheap to build. :-) There is a schematic online, although someone said it has a few errors. Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek ...Jim Thompson I designed a compressor for a hearing aid about 48 years ago... testing it before I got it working correctly... blew a hole in my left eardrum :-( ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice ![]() | E-mail Icon at http://www.analog-innovations.com | 1962 | I'm looking for work... see my website. |
#28
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On 6/21/2016 5:04 PM, Jim Thompson wrote:
On Tue, 21 Jun 2016 15:32:35 -0500, amdx wrote: On 6/21/2016 1:37 PM, Jim Thompson wrote: On Tue, 21 Jun 2016 12:39:57 -0500, amdx wrote: On 6/21/2016 10:45 AM, Jim Thompson wrote: On Tue, 21 Jun 2016 10:04:15 -0500, amdx wrote: On 6/14/2016 7:55 AM, Jim Thompson wrote: On Tue, 14 Jun 2016 07:42:17 -0500, amdx wrote: On 5/12/2016 1:51 PM, Jim Thompson wrote: I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-) I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components. No project is too small... I've even done one-day designs from time-to-time. Drop me an E-mail (*) (*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yep. Works for radio, but not so well for TV movies which can have significant pauses between speaking... thus the volume runs up and down. One reviewer of your selection comments short attack (good), short decay (bad). I noted that, also saw it was the only review like that. If it is objectionable, I'll return it, if it works reasonably well it can always be tweaked. If it wasn't for buying enclosures, variable resistors and connectors, it would be cheap to build. :-) There is a schematic online, although someone said it has a few errors. Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek ...Jim Thompson I designed a compressor for a hearing aid about 48 years ago... testing it before I got it working correctly... blew a hole in my left eardrum :-( ...Jim Thompson Bummer about the eardrum! I reviewed again that negative review on Amazon, she said by adding 10uf to 100uf cap from emitter to collector of Q1 eliminated the raspyness. Only problem is, as I see it the units has 1 single IC and no transistors. I wonder if it she has an older or newer unit. Her review is recent, the published schematic is May 2009. I think she just may be confused. Mikek |
#29
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Posted to sci.electronics.design,sci.electronics.basics,alt.binaries.schematics.electronic
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On 6/21/2016 8:01 PM, amdx wrote:
Did you complete the audio compressor/limiter you were working on for a bit? Mikek I don't even remember that ;-) ...Jim Thompson As I recall it was a personal project, you had ask a question here about it. I'm interested because I use an FM transmitter to transmit my internet radio audio around the house/yard. Some internet radio signals have high volume some have low, and sometimes it's different between programs*. I'd like to level this, without adjusting the transmitter input level each time I switch internet stations. Did you ever listen to these radio shows as a youngster? Gunsmoke, William Conrad voices Matt Dillion, The Six Shooter with Jimmy Stewart, Dragnet with Jack Webb, Bold Venture staring Humphrey Bogart and Lauren Bacall, The Adventures of Philip Marlowe, Our Miss Brooks with Eve Arden, and of course The Shadow? * I often listen to Old Time Radio Programs, and there can be a level difference between shows. Mikek I'm much older... I'm of "The Fat Man" and "The Lone Ranger" era. I guess you missed this part of the compressor thread... From: Jim Thompson Newsgroups: sci.electronics.design Subject: Best Audio Clipping Ind Circuit Date: Thu, 10 Feb 2011 08:19:18 -0700 Message-ID: References: X-Newsreader: Forte Agent 6.00/32.1186 [snip] Use a compressor instead, like... http://tinyurl.com/4npqpcl I use one to level everything out of my Roku Soundbridge before it goes to my sound system... since streaming feeds on the Internet are so variable in amplitude. ...Jim Thompson I did miss that part, or forgot it because I didn't want to spend that much. So I take it that's what you bought, and you are happy with it? Yep. Works for radio, but not so well for TV movies which can have significant pauses between speaking... thus the volume runs up and down. One reviewer of your selection comments short attack (good), short decay (bad). I noted that, also saw it was the only review like that. If it is objectionable, I'll return it, if it works reasonably well it can always be tweaked. If it wasn't for buying enclosures, variable resistors and connectors, it would be cheap to build. :-) There is a schematic online, although someone said it has a few errors. Yes the "Fat Man" and "The Lone Ranger" have also played on the Internet stations I listen to, I'd rather listen to "Fat Man" than "The Lone Ranger", Gunsmoke would probably be my favorite, but I enjoy most of the detective stories, Dragnet and Philip Marlowe etc. Went on a search and found this compressor. https://www.amazon.com/rolls-SL33B-S...dio+compressor I'll search a bit more but think I'll buy that one. Mikek ...Jim Thompson I designed a compressor for a hearing aid about 48 years ago... testing it before I got it working correctly... blew a hole in my left eardrum :-( ...Jim Thompson Bummer about the eardrum! I reviewed again that negative review on Amazon, she said by adding 10uf to 100uf cap from emitter to collector of Q1 eliminated the raspyness. Only problem is, as I see it the units has 1 single IC and no transistors. I wonder if it she has an older or newer unit. Her review is recent, the published schematic is May 2009. I think she just may be confused. Mikek I need to apologize to the reviewer. I received the Rolls SL338 program Limiter. It has a schematic and shows the unit has been revised from their original schematic that was posted online. The new schematic has a couple of optoisolators, and most important, one transistor labeled Q1! I have it hooked up, but I'm not ready to make any comments yet. I need to solve some hum and breakthrough problems, possibly caused by the FM antenna to close to the limiter. Listening to Dragnet, Jack Webb is advertising Chesterfields. :-) Also an ad asking for blood donations to get gamma globulin to help fight polo. It also had an ad for Fatima cigarettes, that's one I never heard of. http://graphic-design.tjs-labs.com/s...?id=1174783428 Mikek |
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