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Tube ID help...

RichSZ

Gold Supporting Member
Messages
1,966
Hi all. Recently had a chance to tear into a Baldwin Organ and came away with a pretty big cache of tubes. I was wondering if anyone knew some info on the manufacturer of these tubes and could help me ID them.

Pics here: http://home.comcast.net/~rszmagaj/

Here are the details:

(30) 12AX7's - Labeled Baldwin Piano & Organ (Green Ink)
Made in USA
ATL (some have ATH label)
33
13
29


(46) 12AU7A - Labeled Baldwin Piano & Organ (Green Ink)
Made in USA
AYA
33
13
29


(2) 5U4 GB - Labeled Baldwin Piano & Organ (Green Ink)
Made in USA
AUJ
33
15
22


(7) 6BQ5 - Labeled Baldwin Piano & Organ (Gray Ink)
Made In Japan
3G
4000
P28063-41C
Various numbers stamped in the bottom of tube glass (3, 4, 8, 10, 14, 24, 24)

Thanks in advance for any tips!

-Rich
 

Sparky6string

Member
Messages
3,721
I've pulled Sylvania preamp tubes labeled Baldwin in green paint before but like Mike says we would need pics to be sure.
 




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