TUBE ID Please.....

[notdigital]

I've been on a cleaning rampage in my workshop over the last few days; I came across this solo tube:

As far as I could make out, the acid etching is:

I 6 2
# 2 F where the "#" symbol is actually two horizontal parallel lines intersected by as single vertical line.

There is no diamond on the bottom but a stamped "34" on the bottom. Siemans???

Oh yeah: 4 seamed top.

 

[nj pheonix]

You say there is no diamond. The plates look like RCA, Tele.
Made in Germany Hmmmm. No diamond , tele is out. Siemens, Valvo, Tungsram? Is it a flasher?

 

[notdigital]

Is it a flasher?

Dunno...haven't plugged it in. I'll pop it in the tester to see......

 

[nj pheonix]

George , could you mistaking that mark or a portion of that mark as this logo?
http://www.canuckaudiomart.com/deta...7__one_chrome_ecc8212au7_tubes/images/402996/

 

[nj pheonix]

Plates match pretty well with the valvo though there is a strong family resemblance across the board

 

[notdigital]

Naw Andy, it is branded "Grommes" with no Siemens logo. And yes, it flashes.

I'll try to put up better pics.....

 

[notdigital]

Better shot of the plates/getter:

 

[gadget73]

I6 says its a 12AX7


http://www.audiotubes.com/PhilipsCodeList.pdf

http://www.audiotubes.com/mullcode.htm

the sideways H marking is Seimens in Munich.

I can't work out the date structure in that nonsense, maybe someone with a better head for it can.

 

[notdigital]

OK, I think you're onto it gadget. By my reading of Brent Jessee's site it is a

12ax7 (I6)

Siemens Halske (sideways H)

1962, June (2F)

second batch (2)