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| Electronic Schematics (alt.binaries.schematics.electronic) A place to show and share your electronics schematic drawings. |
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#1
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simplest possible rf amp
Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter
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#2
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simplest possible rf amp
On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012
wrote: Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter Probably a MMIC, like a MiniCircuits ERA series, or one of the SOT89 parts for higher power. All that needs is an input capacitor, and output capacitor, and a pullup resistor to a positive power supply. 4 parts. Expect numbers like 20 dB gain from LF to several GHz. -- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators |
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#3
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simplest possible rf amp
"John Larkin" wrote in message ... On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter Probably a MMIC, like a MiniCircuits ERA series, or one of the SOT89 parts for higher power. All that needs is an input capacitor, and output capacitor, and a pullup resistor to a positive power supply. 4 parts. Expect numbers like 20 dB gain from LF to several GHz. What became of the good old MAR8 ? Another alternative is a DG MOSFET, with a RFC drain load the second gate can be used as a gain control. |
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#4
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
"resurgence2012" schreef in bericht ... Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter -- resurgence2012 What about a good old ECC85? petrus bitbyter |
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#5
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simplest possible rf amp
On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012
wrote: Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter Do you mean a linear RF PA? RL |
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#6
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
If you are looking for an RF pre amp to help on receiving, the MPF 102
has always been great. http://nuclear.ucdavis.edu/~cebra/cl...116/MPF102.pdf If you are looking for something to boost a transmitter and don't want to bother with quality, I wish you the worst of luck! On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter John Ferrell W8CCW |
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#7
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simplest possible rf amp
On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012
wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter |
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#8
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
"petrus bitbyter" wrote in message l.nl... "resurgence2012" schreef in bericht ... Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter -- resurgence2012 What about a good old ECC85? Might be easier to get an '88 from that old boatanchor scope gathering dust in the corner. |
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#9
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
That was a little harsh. The problem with sloppy power amps is that
they cause every one trouble, including the neighbors! On Fri, 03 Aug 2012 20:35:11 -0400, John Ferrell wrote: If you are looking for an RF pre amp to help on receiving, the MPF 102 has always been great. http://nuclear.ucdavis.edu/~cebra/cl...116/MPF102.pdf If you are looking for something to boost a transmitter and don't want to bother with quality, I wish you the worst of luck! On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter John Ferrell W8CCW John Ferrell W8CCW |
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#10
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simplest possible rf amp
In article ,
RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? -- Regards, John Byrns Surf my web pages at, http://fmamradios.com/ |
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#11
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simplest possible rf amp
"John Byrns" wrote in message ... In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? Its quite tricky and tends to let the vacuum out. |
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#12
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simplest possible rf amp
Takes a Pair!
On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW |
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#13
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
On 6/8/2012 6:55 AM, John Ferrell wrote:
Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... |
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#14
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simplest possible rf amp
Jalil - Natural Systems wrote:
On 6/8/2012 6:55 AM, John Ferrell wrote: Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... ....not married? |
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#15
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
On 21/8/2012 2:47 PM, Robert Baer wrote:
Jalil - Natural Systems wrote: On 6/8/2012 6:55 AM, John Ferrell wrote: Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... ...not married? Married RF transistors are known to cause resonance issues, leaks, and are always incorrectly biased, usually ending up in courts. I'd stick to single RF amps. |
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#16
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
"Jalil - Natural Systems" wrote in message ... On 21/8/2012 2:47 PM, Robert Baer wrote: Jalil - Natural Systems wrote: On 6/8/2012 6:55 AM, John Ferrell wrote: Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... ...not married? Married RF transistors are known to cause resonance issues, leaks, and are always incorrectly biased, usually ending up in courts. I'd stick to single RF amps. What do gay RF transistors get up to?! |
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#17
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
On Tue, 21 Aug 2012 14:44:07 +0100 "Ian Field"
wrote in Message id: : "Jalil - Natural Systems" wrote in message ... On 21/8/2012 2:47 PM, Robert Baer wrote: Jalil - Natural Systems wrote: On 6/8/2012 6:55 AM, John Ferrell wrote: Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... ...not married? Married RF transistors are known to cause resonance issues, leaks, and are always incorrectly biased, usually ending up in courts. I'd stick to single RF amps. What do gay RF transistors get up to?! A few Gigglehertz? |
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#18
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simplest possible rf amp
Jalil - Natural Systems wrote: Any single RF transistor will do just fine... Really? Early RF transistors were barely good over the AM BCB |
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#19
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simplest possible rf amp
Ian Field wrote: What do gay RF transistors get up to?! Why would you even want to know? |
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#20
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
"JW" wrote in message ... On Tue, 21 Aug 2012 14:44:07 +0100 "Ian Field" wrote in Message id: : "Jalil - Natural Systems" wrote in message ... On 21/8/2012 2:47 PM, Robert Baer wrote: Jalil - Natural Systems wrote: On 6/8/2012 6:55 AM, John Ferrell wrote: Takes a Pair! On Sat, 04 Aug 2012 14:27:51 -0500, John Byrns wrote: In article , RST Engineering wrote: On Fri, 3 Aug 2012 02:15:08 +0000, resurgence2012 wrote: A cascode 6J6? Jim Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter A cascode 6J6 would be a neat trick, I would like to see how you do it? John Ferrell W8CCW Any single RF transistor will do just fine... ...not married? Married RF transistors are known to cause resonance issues, leaks, and are always incorrectly biased, usually ending up in courts. I'd stick to single RF amps. What do gay RF transistors get up to?! A few Gigglehertz? In cascode it depends which one gets on top. |
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#21
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simplest possible rf amp
On 22/8/2012 1:00 AM, Michael A. Terrell wrote:
Jalil - Natural Systems wrote: Any single RF transistor will do just fine... Really? Early RF transistors were barely good over the AM BCB Didn't say they were good. Said they will do just fine, for the quick and dirty amplification, to boost the 100MHz. neighbours conversations. |
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#22
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simplest possible rf amp
"resurgence2012" wrote in message ... Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter -- resurgence2012 TUBE OR SOLID STATE |
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#23
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simplest possible rf amp
On 8/2/2012 9:15 PM, resurgence2012 wrote:
Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter Wouldn't it be nice if the OP would check in? Mikek |
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#24
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simplest possible rf amp
It would be nice to know what power you looking for and what actual frequency you attend to use it at???
"resurgence2012" wrote in message ... Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter -- resurgence2012 |
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#25
Posted to alt.binaries.schematics.electronic
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simplest possible rf amp
Grumpy wrote: It would be nice to know what power you looking for and what actual frequency you attend to use it at??? "resurgence2012" wrote in message ... Hi - I am looking for a circuit diagram for the absolute simpleat possible rf amP that can go up to about 100Mhz - can anyone help please. Not looking fir quality - just the bare bones of something that works. Cheers Peter Why the hell are so many people suddenly replying to three month old messages? |
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