Re: The "Sussex" Homebrew Valve Tester.
Les,
Very well done, I dont have any CAD programmes here.
Regarding your connections D1 & D2, I purposely didn't put any rectifier test on the tester.
All the AVO testers appear to run the rectifiers at around 100v.After discussing this with a friend who repairs Hi End audio for a living, he says he has had many current production rectifiers which test perfectly OK on an AVO, yet fail (arc over) when you put 350 - 400v on them. So unless you give them a "good work out" it appears a low voltage test is pretty meaningless.
What are your (and others) thoughts.
It's good others are throwing their ideas into the pot.
Regards
Mike
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