This auction is for a Quad Lot of NOS RAD TEL 6K6 GT Black Plate USA Made Amp Power Tubes. Identical, they all have black plates,  a bottom getter, lig

 

This auction is 2 pcs GE JG 5751WA audio tubes / valve, triple mica gray plate D getter ,made in USA 1955 , tested on my hickok 600 micromho dynamic mutual conductance tube tester. test results (1750/

 

Sounds a little fuzzy when played maybe a tube needs replaced??? Not sure .... Measures approx 12 1/4" x 10 3/8" x 6 1/4" needle intact handle is broken leather Posted with eBay Mobile

 

This is a Lot of 6 Identical GE M2057 2057 Linear amplifier tubes all 6 are exacly the same. these are very hard to find and even harder to find this many alike. These were all tested on my B&K 70

 

Siemens E80CC Audio Tubes NOS NIB.E80CC = 6085 SQ (special quality) boxshaped plates, tubes have a small aluminium plate inside with codes, could be tungsram made for siemens. They test great , 7.2-7.

 

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

 

Set of four Ruby 12AX7AC5 tubes, brand new and in white boxes. These tubes are all factory tested and part of a fresh OEM bulk lot. You can buy with confidence that these tubes will not be microphonic

 

Here is a Matched Pair 1952 Sylvania 6SN7WGT Tubes. They have black "T" plates. Testing these tubes with my Hickok 539B Tube Tester where 3000 uMhos is considered by the data book to be NOS, these tub

 

*************************************************************************** This auction includes four vintage Hammond US-made 12AX7 / ECC83 vacuum tubes. All of these tubes have ribbed plates and hal

 

You are bidding on a SINGLE, UNUSED Bendix 6900 tube. 6600 micromohs (both sides) on my Hickok 539C. NOTE: Overseas shipping prices are approximate. Will calculate and inform winning bidder.On Apr-03-