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I though I might warn fellow tube buyers, there is seller on eBay that frequently lists tubes with absurdly high readings , like 2000 / 2100 transcoductance on a NOS 6SL7.
I have contacted the seller twice, no response so far, so I believe it is fair to post here.
Be very careful when purchasing from seller Greengirl613
I believe their tube tester is WAY off calibration OR they are using by mistake the English settings and reading transcoductance. English settings on Hickok testers are only for GOOD / BAD readings.
If you have purchased from them and confirmed their readings, please let us know.
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Topic - Weird tube GM readings on eBay - casouza 20:33:06 05/01/10 (16)
- RE: Weird tube GM readings on eBay - rivieraranch 05:48:11 07/10/10 (0)
- RE: Weird tube GM readings on eBay - NativePrairie 19:36:12 05/02/10 (0)
- RE: Weird tube GM readings on eBay - reb 18:54:52 05/02/10 (0)
- Those Gm readings are not absurdly high.... - Minussss3db 18:08:53 05/02/10 (0)
- RE: Weird tube GM readings on eBay - Palustris 12:53:51 05/02/10 (9)
- RE: Weird tube GM readings on eBay - JSTRM 20:30:43 05/02/10 (8)
- RE: Weird tube GM readings on eBay - casouza 01:15:31 05/06/10 (0)
- CW, this is the seller that I referred to in my post of 4/22/10 . . . - hiatt@alaska.net 00:58:33 05/03/10 (6)
- RE: CW, this is the seller that I referred to in my post of 4/22/10 . . . - Jim McShane 07:18:29 05/03/10 (5)
- Jim, what bias setting did you use to achieve 10,000 umhos with - hiatt@alaska.net 10:22:36 05/03/10 (4)
- RE: Jim, what bias setting did you use to achieve 10,000 umhos with - Jim McShane 15:04:04 05/03/10 (3)
- RE: Jim, what bias setting did you use to achieve 10,000 umhos with - aznhbob 11:55:52 07/04/10 (0)
- Jim, are the measurements you mention here done a TV-7? - hiatt@alaska.net 23:50:43 05/03/10 (2)
- RE: Jim, are the measurements you mention here done a TV-7? - Jim McShane 20:15:15 05/04/10 (1)
- RE: Jim, are the measurements you mention here done a TV-7? - LoL 07:46:23 07/01/10 (0)
- Phew! Thanks for the information. I just tested my calibration - hiatt@alaska.net 21:00:38 05/04/10 (0)
- RE: Weird tube GM readings on eBay - notben 01:14:11 05/02/10 (2)
- RE: Weird tube GM readings on eBay - Kberube80 09:40:26 05/04/10 (1)
- RE: Weird tube GM readings on eBay - JSTRM 21:35:39 05/04/10 (0)
- RE: Weird tube GM readings on eBay - Nate 20:00:49 06/30/10 (0)
- RE: Weird tube GM readings on eBay - casouza 23:32:21 07/06/10 (0)