Silvertone 12AX7 ID [Archive]

mike80

05-11-2009, 04:31 PM

I acquired an old Silvertone 12ax7 that I was told was from the 50's. It looks very similar to a Sylvania 12ax7 that I have. Here's some pics.

http://img.photobucket.com/albums/v638/mikey383/004.jpg

http://img.photobucket.com/albums/v638/mikey383/003.jpg

The Silvertone is on the left, Sylvania on the right.

http://img.photobucket.com/albums/v638/mikey383/005.jpg

The codes on this tube are 812 (or maybe B12), under that is 118, and under that is AJG (or maybe AJF)

Is this a rebranded Sylvania?

rockon1

05-11-2009, 04:38 PM

Yep Sylvania long grey plates-both. Bob

mike80

05-11-2009, 04:43 PM

Thanks Bob. That's was I was thinking.

59Vampire

05-11-2009, 07:59 PM

312 is the sylvania eia code

Timbre Wolf

05-11-2009, 11:42 PM

Yep Sylvania long grey plates-both. Bob
312 is the sylvania eia code:agree

I'll just add that those tubes may be from the '50s, but no older than '58; maybe '60s.

- Thom