the best tube tester is.......

Posted by vinnie2 (A) on August 25, 2015 at 18:25:51

I have heard it for years and now I truly believe it .... the best tube tester is a working circuit.
I was trying to decide what to do with what I thought were dud 26 tubes that had tested quite a bit below minimum on my TV-10 tester. I had the tester gone through by the TV-7 & 10 guru out in Arizona when I first got it a while back, so I am fairly sure it is operating per specs.
Anyway... I decided to stick a pair of globe 26's that had tested at 500 and 550 (minimum being 750) in my 26 bread board. To my surprise they played very nicely and there was very little reduction in volume that I could hear. I proceeded to go through about 15 more tubes from the dud box and 10 of them worked just fine. The other 5 worked but had issues of noise, etc.
Bottom line for me is that from now on I will always do a final check in circuit on any tubes that test too weak as long as they don't show shorts or any other problems.

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Topic - the best tube tester is....... - vinnie2 18:25:51 08/25/15 (25)

Since we al are diyers.... - pix 04:22:18 08/27/15 (16)

RE: Since we al are diyers.... - vinnie2 04:44:03 08/27/15 (15)

RE: Since we al are diyers.... - Garg0yle 08:50:20 08/27/15 (14)

RE: Since we al are diyers.... - Triode_Kingdom 13:03:20 08/27/15 (6)

RE: Since we al are diyers.... - c1ferrari 16:31:23 08/29/15 (0)

RE: Since we al are diyers.... - Garg0yle 13:26:36 08/27/15 (4)

Distortion Measurements - Triode_Kingdom 20:27:46 08/27/15 (3)

RE: Distortion Measurements - Garg0yle 20:46:04 08/27/15 (2)

RE: Distortion Measurements - Triode_Kingdom 22:13:59 08/27/15 (1)

RE: Distortion Measurements - Garg0yle 23:10:50 08/27/15 (0)

RE: Since we al are diyers.... - vinnie2 12:45:36 08/27/15 (6)

RE: Since we al are diyers.... - Garg0yle 13:23:26 08/27/15 (5)

RE: Since we al are diyers.... - vinnie2 15:05:35 08/27/15 (4)

RE: Since we al are diyers.... - Garg0yle 21:10:37 08/27/15 (3)

RE: Since we al are diyers.... - vinnie2 09:05:51 08/28/15 (1)

RE: Since we al are diyers.... - Garg0yle 11:30:19 08/28/15 (0)

RE: Since we al are diyers.... - vinnie2 04:22:16 08/28/15 (0)

Funny you mention this... - Audiodyssey 00:55:15 08/27/15 (1)

RE: Funny you mention this... - vinnie2 02:29:46 08/27/15 (0)

RE: the best tube tester is....... - Triode_Kingdom 22:41:55 08/25/15 (5)

Agreed - MikeWI 16:04:41 08/31/15 (0)

RE: the best tube tester is....... - vinnie2 04:46:27 08/26/15 (3)

RE: the best tube tester is....... - JKT 21:17:21 08/26/15 (2)

RE: the best tube tester is....... - c1ferrari 16:38:04 08/29/15 (0)

RE: the best tube tester is....... - vinnie2 02:31:01 08/27/15 (0)

the best tube tester is.......

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