Use the pictures as a guide. Let me know if you need to know specific details, other marks/screening etc.
These kinds of tubes are tested on a B&K 707 mutual conductance tube
checker. 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). The BK 700 series tests
"good" with no "official" Gm numbers in the Jet-check section for this
type of tube (its result was 109).Remember, the best test for a tube is to simply employ it within a circuit!
See other auctions for more radio, broadcast audio, music stuff!
Buyer prepays and pays shipping. International buyers please refer to
the shipping calculator. Please note S/H costs include postage,
packaging, processing, and handling. International insurance is covered
if you choose Priority Mail, but NOT if you choose First Class Mail
International. Bid with your overall costs in mind.
Placement of a bid constitutes understanding of and conformity with these instructions!
THANK YOU for looking!