"Hubert ROTH" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Hi Garey
Thanks for the answer.
I checked that. Problem subsists even with a lab supply in place of the 11V
Stability turns to normal at 8V but than I have not enough output to feed
the mixer.
With a spectrum analyzer and a 10hz BW you see the signal playing rock an
roll until 8V
Changing fet and buffer transistor did not hel
BTW when I opened the can I noticed that the FETs Source lead was not
soldered was loose I told myself thats it !!
Hooked te supply and it was still there
I separated the PTO board from the slug oscillator runs than at 5330Khz just
to make sure that its nothing mechanical but no!!
Could be a ceramic cap that I did not change as I dont know the value and as
I dont want to ruin temp comp. With the high Q voltage could be high enough
to render them unstable
All ideas are wellcome
73,s from Hubert F6DUK
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