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Old 17th Feb 2010, 10:07 pm   #170
Top Cap
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Join Date: Mar 2006
Location: Watford, Hertfordshire, UK.
Posts: 1,159
Default Re: The "Sussex" Homebrew Valve Tester.

Hi Mike, as requested by another Forum member I have added transistor lead out info with ghosted outlines for TR6,7 and 8 on my sketch at the link in my last post. While doing this I think I found an error on C8 and D6 as these are reversed against the circuit diagram. I have corrected this on my sketch but just hope this is now correct as I am banking on the circuit diagram being correct i.e. C8 +ve at VR2 and -ve at TR7 emitter.
Whether the Top Cap is Grid or Anode - touching it will give you a buzz either way!
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