Tubes Asylum

Can black plates turn grey over time?

192.193.171.151

Maddnotez@gmail.com

I am looking at 12ax7's for my guitar amp and am interested in trying some with a long black plate.

I know ebay if full of scammers and people who don't know alot about what they are selling. Anyhow, I have seen a few 12ax7's advertised as Long Black Plate with horrible pictures.

It is very hard to tell but the plates sometimes look more grey than black.

Can the black color deteriorate over time?

Follow Ups:

RE: Can black plates turn grey over time? - unclestu 20:44:46 09/26/14 (0)
probably overexposure settings to capture the inside detail of glass envelope
Mine usually turn red (nt) - Triode_Kingdom 11:12:15 09/26/14 (1)
nada aqui
--------------------------
Buy Chinese. Bury freedom.
- LOL Thanks TK, I needed the laugh! (nt) - 1973shovel 16:34:36 09/26/14 (0)
RE: Can black plates turn grey over time? - sony6060 10:08:24 09/26/14 (0)
I never seen black plate turn grey. Not even a power tube.

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