Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: pbman1953 on September 30, 2026, 05:26:03 pm

Title: Tube testers
Post by: pbman1953 on September 30, 2026, 05:26:03 pm

How is the Eico 628?


If it's a good one , would be enough to tell you tube life and be able to make matched sets?

Title: Re: Tube testers
Post by: tubeswell on September 30, 2026, 07:02:32 pm

Never owned a tube tester because I don't resell enough tubes to drink the Kool Aid.


But for all the 'matched' sets I've bought over the years, 'matching' goes out the window as soon as you stick them in push-pull amp and see how different they are.