Tested Gibson 5Y3 rectifier tube. Made by RCA.

 

Up for auction is a NOS Sylvania 5U4G tube. With date code 2/52. It has been tested on a TV7-D/U for mutual conductance where min. good is a reading of 40/40. It test 52/52. I will be listing more tub

 

you are bidding on 16 vintage tubes ECC83/12AX7 original brand RSD from RFT Rsdio Funktechnik Kombinat DDR production germany from the early 1960's, not a production from china - all tubes tested with

 

Up for sale is an AFTERMARKET needle for a GE VR-22 stereo cartridge.Box is open and written on, but the needle is never used. Needle is made in Europe.

 

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

 

Have a look at this pair of vintage audio tubes ECC801S (12AT7) twin triodes made in Germany by TELEFUNKEN in the 1970's:Old genuine production with triple mica and the diamond <> trademark impr

 

6146/6146B vacuum tubes 5 pcs. used tested. 3X 6146, 2X 6146B all tested at 80-100% min. Shipping within the USA 48 is by either economy or expedited service. Shipping outside the USA is by the First

 

This auction is for a real nice good used vintage General Electric 5U4GB full-wave rectifier vacuum tube. This tube tested great on a reliable TV10-D/U tube tester. Real strong readings on both plates

 

You are looking at a lovely very strong matched quad of Amperex Holland Bugle Boy small halo getter 6DJ8/ECC88 twin triode tubes from batches GA8 delta 4H2, GAA delta 5E2, GA8 delta 4C2 and GAC delta

 

Here is a very nice HEATHKIT IT4 SIGNAL TRACER AND OSCILLATOR UNIT both are in working condition the switches need cleanin though a little scratchy, the tuning eye is bright and the test oscillator ha