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Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
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Topic: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier (Read 472 times)
W1RKW
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Posts: 219
Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
«
on:
March 11, 2021, 07:43:46 AM »
http://amfone.net/Amforum/index.php?topic=46664.0
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K0UA
Member
Posts: 9589
Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
«
Reply #1 on:
March 11, 2021, 11:37:34 AM »
Quote from: W1RKW on March 11, 2021, 07:43:46 AM
http://amfone.net/Amforum/index.php?topic=46664.0
Where were the bandpass filters? How clean can this be?
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73 James K0UA
W1RKW
Member
Posts: 219
Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
«
Reply #2 on:
March 12, 2021, 05:40:05 AM »
It has a tuning network on the output. Harmonics are about 60dBm down from fundamental. Builder just posted a spectral display and additional information on the build.
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Last Edit: March 12, 2021, 05:43:21 AM by W1RKW
»
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W9IQ
Member
Posts: 8866
Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
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Reply #3 on:
March 12, 2021, 07:57:41 AM »
Probably 60 dBc down or -60 dBc...
- Glenn W9IQ
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- Glenn W9IQ
God runs electromagnetics on Monday, Wednesday and Friday by the wave theory and the devil runs it on Tuesday, Thursday and Saturday by the Quantum theory.
G3RZP
Member
Posts: 2254
Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
«
Reply #4 on:
March 13, 2021, 08:17:37 AM »
Why does C8 need to be rated at 5kV? Or is that what was available?
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W1RKW
Member
Posts: 219
Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
«
Reply #5 on:
March 13, 2021, 12:34:35 PM »
Most of what Steve used for the amplifier is what he had on hand.
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Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier