• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Have you seen this tester?

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It might be a safe bet to assume many are very similar with different names on them. Who'd want to design that rat's nest more than once?

There may be more information in the power supply unit if we got a chance to look inside. :devilr:

-Chris
 
not sure now if i want to dig into it any further.

i think i'm going to sell this one and use the money to get a tester i can use to match sets etc..

seeing how i havent been able to find any "testmasters" anywhere on ebay or google, it may get fetch a decent amount.
 
i suppose, just that even once the testing chart info is decrypted, it still wont be useful to reliably match tubes.

the army issue TV-7's seem pretty common, and maybe i'll find a collector that will accept a trade.

ec, the sun never really came out today.. was pretty dreary.

havent forgoten about your pictures though.
 
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