I just bought a Accurate Instrument Co. Tube tester Mod 257 at a flea market for $30 .
the case is in fairly good condition and the tester works . I tried testing one of the KT 88 tubes
on it and shows good . What i wanted to know is anyone familiar with this one and is it any good.
from schematics on line a test voltage of 25v is applied .I would like some input on this tester .
I've been a member of this forum for a while i guess since i bought one of Bobs ST-120 kits . I love
it . I think its the best out there and got lots of balls of output . I bought the ST 120 kit the
first of the year .This is my first post.