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Old 15th Feb 2014, 4:16 am   #1075
Top Cap
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Join Date: Mar 2006
Location: Watford, Hertfordshire, UK.
Posts: 1,270
Default Re: The "Sussex" Homebrew Valve Tester.

Mike, just for interest, what Mosfets are you using, are they BUZ80's?
I ask because I had some problems with this type which were cured when I fitted IFR830's.
Your problem is probably not related but I am curious
Les
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