A general purpose tube tester is great for sorting out gross defects. But the devil is in the details, such as high frequency RF circuits and high impedance AVC/AGC.
An old school TV repairman taught me years ago that you don't toss a tube just because it tests low/weak/bad on a tester. If it works to spec in circuit it is "good".
73
-Jim
NU0C
On Fri, 19 Jan 2024 19:42:34 -0800
"Robert Lonn WA6PHN" <roblonn@cox.net> wrote:
> Don, as I mentioned in my other post, see below, I now have 4 tube testers and they are precision high end devices, hopefully they can expose any tube issues that might come up.. Robert WA6PHN
-- 
73
-Jim
NU0C
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