April 24, 2024
NOS RCA 6EU7 tube. Hickok Tested, 88, 92 = 1408, 1472 mhos
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NOS RCA 6EU7 tube. Hickok Tested, 88, 92 = 1408, 1472 mhos.This tube was tested on a Calibrated Hickok Cardmatic USM-118. During the tests the tubes were checked for H-K leakage, shorts, and gas.The cardmatic scale is from 0 to 100. 50 marks the the transition from replace to good. A reading of 100 does not mean the tube measures 100% of the gm listed in tube manuals. Typically tubes meeting gm values in the tube manuals measures in the 80s.Here are the cardmaic meter readings and tube mhos. RCA - 88, 92 = 1408, 1472 mhosTest results are written one on the inside on one of the tube box lidsDomestic purchases can be combined to reduce shipping costs.International shipping is through the ebay Global Shipping ProgramItems usually ship the day after payment is received.
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