NOS 1950's Western Electric 412A Audio Rectifier Vacuum Tube

NOS 1950's Western Electric 412A Audio Rectifier Vacuum Tube Introduction

A Western Electric 412A 1950's rectifier vacuum tube, 8 available, with original WE-marked white boxes. All test NOS, all are unused except for our testing. 4 of the 8 have date code '452' (52nd week of 1954), 2 have '426', one has 326 and one has 513. Each tube is marked with same 'Western Electric 412A MADE IN U.S.A. (date code)'. Tested on calibrated Hickok Cardmatic 123R tube tester with results: Remaining Life - all 8 tubes pass cathode activity test, Leakage - all 8 tubes pass test, Quality - 4 test at 75, 4 test at 76, well within NOS range for this Cardmatic tester, Gas - all 8 tubes pass test, Shorts - none, all pass test. All pictures are of the 412A tubes for sale. Large rectangular angled getter, black plate, flashing excellent, tubes are unused except for our testing. Very crisp, as-new well-marked logos on all tubes. Original and correct WE 1950's white boxes - 7 are in fair condition and one is rough. All 8 boxes are marked on end flaps with '412A' and 4 boxes are also marked with 'Western Electric' script. These rare WE 412A tube sets came from a Canadian communication company's reserve stock department, and a one-page detailed written provenance is included. See our other sale items for rare Western Electric and Siemens and Philips tubes and other audio equipment. $135 per each tube, or best offer. Will deliver free to your door in Regina area, curbside pickup available, shipping available.