NOS 6136 (6AU6WA 6AU6 EF94) Vacuum Tubes - GE - USA - 1981 ($9.95/ea, TESTED)

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You are bidding on (1) NOS GE 6136 (6AU6WA) electron tube, made in the USA in 1981; the 6136 is a high reliability version of the 6AU6 tube and is considered a premium tube.  Identical date codes of RR indicate November 1981.  Gray plates, dual mica spacers, copper rods, and top mounted getter.  Tubes come from sealed cases of 100.  Tubes ship in original individual tube boxes as shown in the photos.  Note your bid is for one tube, not the case.<br>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.<br>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.<br>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).<br>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.<br>(lot VX-6AU6)<br>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.<br>