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Re: 20 W Amp Oscillates


 

It is the K9HZ 20W amp

On Fri, Mar 14, 2025 at 4:53?PM jerry-KF6VB via <jerry=[email protected]> wrote:
Is it a K9HZ final? Or the one with the IRF510s?

- Jerry, KF6VB

On 2025-03-14 13:52, D Solt via wrote:
I got the second T41 v12 with SW ver66.4 with amplifier operating
today. Both are acting the same, oscillations around 40MHz at several
watts when PTT is engaged. With the oscillation, I was still able to
do the TX IQ null. I am stumped. I don't have a very accurate way to
measure power yet; using a 50MHz TBS1052B tek scope and an HP363 kit.
dave, n3ds


Links:
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[1] /g/AmateurRadioBuilders/message/6170
[2] /mt/111686473/243852
[3] /g/AmateurRadioBuilders/post
[4] /g/AmateurRadioBuilders/editsub/243852
[5]
/g/AmateurRadioBuilders/leave/11522011/243852/920863695/xyzzy

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