International C Servicemaster Electron Tube 12AU6 / HF94 Vacum Tube
International C Servicemaster Electron Tube 12AU6 Vacum Tube . Condition is New. Shipped with USPS First Class Package.
10x International Service Master 12AU6/HF94 TUBE NIB
This product is a set of 10 vacuum tubes with the brand International Servicemaster and model 12AU6. They were manufactured in the United States and are new in box. These tubes are compatible with the HF94 model.
4X International Servicemaster Vacuum Tubes / 12AU6 HF94 / CS1
Tube Number: 12AU6 / HF94. International Servicemaster. Make: International Servicemaster.
Matched Pair 2A7 Smoked Glass Brown Base NOS IEC Audio Tubes
Tv7 tested TUBES. NOS is subject to interpretation and there is no specific definition for it either. There are suggestions and opinions. 90 % of our tubes are Tv7 tested. Tube testers do not test for these problems in the manner in which you think, except to the extent that a tube tester with sensitive leakage detection will find far more “noisy” tubes than a tube tester with only “fair” leakage sensitivity, to the extent that the noise is due to this problem.
ISM USA 6146B NOS NIB 100% Black Plate Side O Getter Serious Tubes TXL3
Type: 6146B. Getter: Side “O”. But this the way of the world now. We are always looking to buy more tubes. Large collections, small collections, it doesn’t matter. Looking forward to hearing from you, Dan.
NOS MATCHED PAIR INTERNATIONAL 6L6GC/RUSSIAN MADE/CURRENT TESTED@400V
Matched pair tested at 400V: 22/19 mA plate current and 2.4/2.3 mA/V transconductance — approx. 91% overall match, very close gm match.”
Matched Pair 2A3 Power Vacuum Tube Tested Strong
Just tested. See pictures. In original boxes. Might be NOS, can’t be sure, but test strong.
(1) Tested International Service Master 6GH8A Tube with Box Made in Hungary (b)
(1) Tested International Service Master 6GH8A Tube with Original Box. Made in Hungary. We prefer the versatility and precision of Hickok TV-10 military testers and use them almost exclusively except in rare instances when pinout/socket compatibility is not possible.
(1) Tested International Service Master 6GH8A Tube with Box Made in Hungary (g)
(1) Tested International Service Master 6GH8A Tube with Original Box. Made in Hungary. We prefer the versatility and precision of Hickok TV-10 military testers and use them almost exclusively except in rare instances when pinout/socket compatibility is not possible.
(1) Tested International Service Master 6GH8A Tube with Box Made in Hungary (d)
(1) Tested International Service Master 6GH8A Tube with Original Box. Made in Hungary. We prefer the versatility and precision of Hickok TV-10 military testers and use them almost exclusively except in rare instances when pinout/socket compatibility is not possible.
