Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Top Filament NOS NIB Records HS 11147 Transconductance measured 2000/1900 micromhos for

Transconductance measured 2000/1900 micromhos for Tube One and 2000/2000 micromhos for Tube Two

IN OVER 6000 SALES

This lot tests low in some cases and uneven in all

Two are American and one is Japanese

new in box RCA 13GF7 13GF7A tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods Top Filament NOS NIB Records HS 11147 Transconductance measured 2000/1900 micromhos forThis new old stock, new in box matched pair of GE MANUFACTURED 6SN7GTB dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and transconductance measured as follows: Tube One: 79 72 (GE MANUFACTURED, Amperex LABELED) Tube Two: 82 76 Bogey: Minimum (65%) is 50 50; 100% is 77 77 Physical Characteristics: Bases: tall Bottles: medium height Date Codes: none and MY, respectively EIA