Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Dave on November 01, 2025, 07:33:39 pm

Title: What tubes to accommodate in a tube tester
Post by: Dave on November 01, 2025, 07:33:39 pm

I'm building a socket adapter for my I-177 tester. I know it's not a great tester, but I like it because it has a simple good/bad scale and mine is well calibrated. I want to accommodate tubes I run across frequently when working on guitar amps. I have accommodated for tubes with pinouts like the tubes on the list that follows.


6L6
7868
7591
6BQ5
6AQ5
6SN7
12AX7


What am I forgetting?


Dave

Title: Re: What tubes to accommodate in a tube tester
Post by: DeepBias on November 01, 2025, 10:03:38 pm

If you don’t already have it, here is the tube chart

http://www.i1epj.ham-radio-op.net/Manuali/I177/i177_108.pdf