Up for sale, a used set of 4 Mullard ECC82 12AU7 tubes. They do not test as high as NOS but they show strength; none are marginal. Details on each of the 4 tubes below. Some have missing lettering.
Tested on calibrated Hickok 539C tester and Fluke VOM (1900 minimum).
Tube #1- Mullard labelled GE, 2750/2700 gm. 9mA. Code: Gf2 B6H2.
Tube #2- Mullard, IEC 2600/2800 gm. 9mA. small O getter, No B code, 1022-642 ?
Tube #3- Mullard label Sonar, 2700/3000 gm. 8.2/10mA. Code: B O12.
Tube #4- Mullard long plate no print 2700/2800. 8.5mA. Code: B81.
Buyer will receive 4 tubes, as shown. Asking US$69. Will be well-packed and shipped within US, free of charge by US Postal. Approx US$12 for international mail. See my other tubes and parts, and thanks for looking.