You are bidding on (1) NOS RCA 12AY7 electron tube, made in the USA in 1974; identical date codes of 7413 indicate 13th week of 1974. Gray plates, dual mica spacers, and top mounted round halo getters. Tubes will ship in the factory original tube boxes as shown. Tubes have been tested on a
calibrated Bitmatic (Western Electric KS-15874-L2) computerized tester
and are guaranteed good; test results as follows (first come first served on which tube the buyer will receive):
First tube: 1892 / 1892 umhos where 1100 - 2200 umhos is the acceptable range on the tester for each section
Second Tube: 1672 / 1540 umhos where 1100 - 2200 umhos is the acceptable range on the tester for each section
All our tubes are tested and
guaranteed by us; we only test tubes on one of our quality calibrated
mutual conductance testers, NEVER on an emissions tester. The
testers we use are Phil Frakes's Bitmatic computerized Cardmatic testers from
Tubesontheweb, the specific models are Western Electric KS-15874-L2's
which were made for Western Electric by Hickok; we currently own two of these testers. Our
backup testers which we use occasionally are military TV-10D/U's. For
specialized tests, we employ one of our VTV Dual Triode Characterizers
(for preamp tubes) as well as a Maxi-Matcher (for power tube matching).
Tubes
are guaranteed for 90 days, refund or replacement our choice. Thanks
for looking at our auction and be sure to check out our other auctions
for other tubes that may be of interest. (lot eblh1001)
SPECIAL
OFFER - FREE brand new VE Tube Pin Straightener (Made In USA) for all
orders over $250!!! Works with 7 pin miniature, 9 pin miniature,
Magnoval, Novar, and Compactron tubes. Also available for individual
sale, please visit our store and search for Tube Pin Straightener.
