Home |
Search |
Today's Posts |
![]() |
|
Electronic Schematics (alt.binaries.schematics.electronic) A place to show and share your electronics schematic drawings. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... -- Rick |
#2
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
On Fri, 31 Jul 2015 02:20:19 -0400, rickman wrote:
Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... You won't be missed :-} ...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. |
#3
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
On 7/31/2015 2:20 AM, rickman wrote:
Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Can't even have a discussion about this group being dead... I guess I'm dumping it. -- Rick |
#4
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
rickman wrote:
Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Ever since LTSpice came out people have been posting netlists instead of schematics. -- |
#5
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso"
wrote: rickman wrote: Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Ever since LTSpice came out people have been posting netlists instead of schematics. ..ASC files aren't "netlists", they're text-based graphical descriptions of schematics. When you select "Run" from within LTspice, LTspice creates a netlist internally, then uses that netlist to do the simulation. ...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. |
#6
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]() "rickman" wrote in message ... On 7/31/2015 2:20 AM, rickman wrote: Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Can't even have a discussion about this group being dead... I guess I'm dumping it. Soon the notorious spammer will be spouting his warped political rants at thin air. |
#7
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
Jim Thompson wrote:
On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso" wrote: rickman wrote: Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Ever since LTSpice came out people have been posting netlists instead of schematics. .ASC files aren't "netlists", they're text-based graphical descriptions of schematics. When you select "Run" from within LTspice, LTspice creates a netlist internally, then uses that netlist to do the simulation. OK, then ever since LTSpice came out people have been posting proto-netlists instead of schematics. -- |
#8
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]() "Tom Del Rosso" wrote in message ... Jim Thompson wrote: On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso" wrote: rickman wrote: Is there any reason to subscribe to this group? I only see one in twenty posts that aren't cross posted to s.e.d. The other 19 are nearly all politics that don't belong in either group. I guess there isn't much here anymore... Ever since LTSpice came out people have been posting netlists instead of schematics. .ASC files aren't "netlists", they're text-based graphical descriptions of schematics. When you select "Run" from within LTspice, LTspice creates a netlist internally, then uses that netlist to do the simulation. OK, then ever since LTSpice came out people have been posting proto-netlists instead of schematics. And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. |
#9
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
Ian Field wrote:
And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. -- |
#10
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
Tom Del Rosso wrote:
Ian Field wrote: And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. There are a number of free/cheap schematic drawing programs: Eagle and Express PCB for example. Nothing wrong with ASCII art. Here is an example copied from years ago: James Arthur wrote: Robert Baer wrote: Robert Baer wrote: 150K 120K +-----/\/\----+-----/\/\--+--- | | | | | |/------+ --- +--------+---| 2N2369A - | | |\ | C1 --- V | 330p --- | | | | Cld --- +-----+ 22p --- | | | C2 --- \ o 250p --- / 4.3K Xtal | \ o | | | | | | | | +--------+-----+ | --- - With C2 at 330pF, only the 200Khz tuning-fork crystal oscillates, and only with a supply voltage near 2.5V; At 3V to 20V supply, 2Mhz-10Mhx crystals work and the 12Mhz does not. With C2 at 250pF, no tuning-fork crystal will oscillate, and those from 2Mhz to 12Mhz does. However, the higher frequency crystals oscillate at a lower amplitude with a given supply voltage. This circuit gave me a surprise; it is clear at 2Mhz, that it operates as a class C circuit from about 5V up. Put a 50 ohm resistor in the collector and pick off the signal with virtually zero disturbance of the oscillator. I have done some fiddling with C1 and C2 and have been unable to get the other tuning-fork crystals to work. Any suggestions? Crystal properties vary widely depending on cut, frequency, and mode, which is why there are so many different circuits. Those tuning fork crystals have big ESRs, like 30-50k @ 32KHz, dropping as frequency rises. I'd think a JFET-based Pierce, having a high-Z input, could be the ticket for the high-ESR types. There's one in the National FET Applications that went something like this: Vdd -+- | | .-. | | R1 | | XTAL '-' _ C1 | | | || | .--|| ||---||--+ | |_| || | | | | |-+ | | Q1 +-----------|-+ | | | | .-. === | | R2 GND | | 10M '-' | === GND (created by AACircuit v1.28.4 beta 13/12/04 www.tech-chat.de) I once made a very nasty, ugly little 32,768 Hz tuning fork oscillator like this (it breaks just about all the rules--for curiosity only!) +1.5v -+- | | .-. .----. | | R2 | | | | 1M(?) .-. | '-' R1 | | | | 10M | | '----+ '-' _ | | | | X1| (R1-2 values are guesses; I don't +--|| ||--+ remember what I actually used) | |_| | | | | |/ Q1 '-------| MSPA18 | | | === GND (created by AACircuit v1.28.4 beta 13/12/04 www.tech-chat.de) Neither of those shows proper crystal loading--that's crystal-specific, and up to you. To adapt your existing circuit use a much higher gain transistor and increase impedances--the emitter load resistor, and, especially, the bias resistors (they're loading the crystal something fierce right now) --and you might get it to oscillate. Cheers, James Arthur |
#11
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]() "Robert Baer" wrote in message ... Tom Del Rosso wrote: Ian Field wrote: And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. There are a number of free/cheap schematic drawing programs: Eagle and Express PCB for example. Nothing wrong with ASCII art. In email and on Usenet, ASCII art usually requires mucking about with fonts and spacing. I'm on the lookout for a very simple (possibly portable) schematic app with output files most others can open, doesn't need comprehensive libraries, I can give a description and component list in the text. |
#12
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
Ian Field wrote:
"Robert Baer" wrote in message ... Tom Del Rosso wrote: Ian Field wrote: And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. There are a number of free/cheap schematic drawing programs: Eagle and Express PCB for example. Nothing wrong with ASCII art. In email and on Usenet, ASCII art usually requires mucking about with fonts and spacing. I'm on the lookout for a very simple (possibly portable) schematic app with output files most others can open, doesn't need comprehensive libraries, I can give a description and component list in the text. Tall order,,,,Express PCB is closest as it comes with a part library, and being free, can be downloaded to open its "drawings". As an example,i have attached such a drawing. |
#13
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]() "Robert Baer" wrote in message ... Ian Field wrote: "Robert Baer" wrote in message ... Tom Del Rosso wrote: Ian Field wrote: And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. There are a number of free/cheap schematic drawing programs: Eagle and Express PCB for example. Nothing wrong with ASCII art. In email and on Usenet, ASCII art usually requires mucking about with fonts and spacing. I'm on the lookout for a very simple (possibly portable) schematic app with output files most others can open, doesn't need comprehensive libraries, I can give a description and component list in the text. Tall order,,,,Express PCB is closest as it comes with a part library, and being free, can be downloaded to open its "drawings". As an example,i have attached such a drawing. Thanks. That might be what I had before the last PC rebuild, I tend to only re-install things when I actually need them. Sometimes by then, I've forgotten what its called. |
#14
![]()
Posted to alt.binaries.schematics.electronic
|
|||
|
|||
![]()
On Tue, 18 Aug 2015 19:05:52 -0700, Robert Baer wrote:
Ian Field wrote: "Robert Baer" wrote in message ... Tom Del Rosso wrote: Ian Field wrote: And political rants - its got so bad, even I've taken the attitude; "when in Rome do as Romans" once or twice. A binaries group dedicated to schematics should be something really special - I don't think it ever fully lived up to that, but in the past few years its been dragged down into the sludge. And when you started a political thing it wasn't a bad thing. I like them for the view into UK politics. It doesn't matter if I agree. It was never very convenient to make gifs of schematics. Most people don't seem to have CAD readily at hand. There are a number of free/cheap schematic drawing programs: Eagle and Express PCB for example. Nothing wrong with ASCII art. In email and on Usenet, ASCII art usually requires mucking about with fonts and spacing. I'm on the lookout for a very simple (possibly portable) schematic app with output files most others can open, doesn't need comprehensive libraries, I can give a description and component list in the text. Tall order,,,,Express PCB is closest as it comes with a part library, and being free, can be downloaded to open its "drawings". As an example,i have attached such a drawing. It looks fine on my computer. I use Linux and run Express PCB under Wine. -- Jim Mueller To get my real email address, replace wrongname with dadoheadman. Then replace nospam with fastmail. Lastly, replace com with us. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
dead sea products.. Get the best Dead Sea Skin Care Products hear | Metalworking | |||
dead sea products.. Get the best Dead Sea Skin Care Products hear | UK diy | |||
electric double oben dead - suspect fan element but why whole lot dead? | UK diy | |||
More dead in Mexican Drug war in 3 yrs....5 x the number of dead in Iraq/Aghanistan | Metalworking | |||
Panasonic G520 mobile phone - dead battery or dead phone? | Electronics Repair |