General Electric GE 6L6 6L6GC Vacuum Tube For Your Univalve NOS-Testing 6AK6 Septal T35 This matched pair of Tung-Sol

This matched pair of Tung-Sol black glass 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts

but the spine is in fine shape with no loose pages

This lot of four European PCL805 tubes was tested on our Paul Hart-calibrated TV7/U

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new in box Sylvania 6V4 / EZ80 rectifier tube tested to spec on Paul Hart-calibrated TV7/U

General Electric GE 6L6 6L6GC Vacuum Tube For Your Univalve NOS-Testing 6AK6 Septal T35 This matched pair of Tung-SolThis new old stock testing and looking! GE 6L6GC output tube was tested on our Maxi Matcher with 400 volts on the plates and a bias of 48 volts for shorts, gas and transconductance. There were no shorts or gas and it tested as follows: Transconductance: 2710 micromhos Plate Current Draw: 71. 6 milliamps (New US 6L6GCs typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so.) It has double, side D