Two organ-branded GZ34 rectifier tubes. British make, Mullard factory. One marked for Everett; the other has most of its printing obliterated - probably spent much of its life in an organ amp, or maybe sitting as a spare. Probably was marked Hammond.

Code markings appear to be, aside from the usual 1022, the two Blackburn UK factory codes f32 B4D1 and f32 B5H4. Bottles are in very good shape. 

IF YOU JUST WANT ONE single tube, let me know - make an offer and say so.

The tubes tested as strong on either side  (119, 120 and 118, 118 out of 120) with no shorts or emissions. Most rectifiers scale on a simple "good / no good" reading on the 707. Tubes have been tested on a B&K 707 mutual conductance tube checker for shorts and emission. The tester was recently calibrated. As is probably obvious, I sell no tubes that fail the shorts or grid emission test (i.e., everything checks out as good for those tests).

Remember, the best test for a tube is to simply employ it in a circuit!

 

Please note this is old electronics, and is sold as-is due to its nature. I have described the items to the best of my ability and do not intend to misrepresent.

A return policy is available. Simply send back in like condition with 14 days if not satisfied. Buy without worry!

See other auctions for more radio, broadcast audio, music stuff!

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Please note S/H costs include postage, packaging, processing, and handling. 

Placement of a bid constitutes understanding of and conformity with these instructions!

Thanks for looking!