Set of four blackplate blackglass National Union Made in U.S.A. 6SN7GT preamp tubes. The tubes are marked ZT with date code 53-09. Tested on B&K 606 tester 83-84, 82-90, 83-87, 86-83. These are NO

 

SquareTrade © AP6.0 Technics by Panasonic FM/AM Stereo Receiver SA-5070 You are bidding on a Technics by Panasonic FM/AM Stereo Receiver SA-5070. Powered on and all the lights seemed to be working al

 

(4) Used beam power tubes used in radio transmitters and some audio amplifiers. With 35 being the minimum test value for a TV-7D, these tubes checked from 40 to 60.

 

Telefunken 12AX7 ECC83 Vacuum Tube This tube tests 134 on our calibrated Eico 667 dynamic tester (passing range is 80-140). That is an excellent score on this tetser. It has also passed testing for sh

 

Hp 41 CV with match pack and carrying case. Seems to be in good shape. Sold as is.On Jul-05-14 at 15:36:09 PDT, seller added the following information: On further inspection, calculator had batteries

 

Western Electric 24A speech input amplifier. This is a two tube amp with 100-L sockets. I do not know what tubes it would use. It contains the following WE transformers: 234B Input, 224A Input, 117A O

 

Threshold FET TWO Series II Stereo Preamplifier acquired from the family of the original owner. Thoroughly tested all functions and features of this high-end pre-amp work as designed. All inputs follo

 

Up for auction are two nice Sylvania Radio Tube type 182B-482B. Each tube is 4 1/2" tall x 1 1/2" wide at the widest point. The tubes are in really good condition. They were NEW OLD STOCK but I got ri

 

* VERY RARE * _VINTAGE _ Marantz Model 500 Late Series Original 2-page Sales Brochure w/spec sheet * * * * * S/H $5.00 in Continental USAIncludes insurance

 

terminal have been soldered but tests fine