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Author Topic: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier  (Read 472 times)

K0UA

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73  James K0UA

W1RKW

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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.
« Last Edit: March 12, 2021, 05:43:21 AM by W1RKW »
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W9IQ

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Re: Inexpensive Homebrew 160m to 40m AM/SSB MOSFET Linear Amplifier
« 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

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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

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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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