Matched Pair General Electric GE 12SN7 12SN7GT Vacuum Tubes Copper Support Rods 6C4 Triode Drawer

Matched Pair General Electric GE 12SN7 12SN7GT Vacuum Tubes Copper Support Rods 6C4 Triode DrawerThis matched pair of General Electric GE 12SN7 12SN7GT dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 63 65 and Tube Two measured 66 64 where minimum (65%) is 50 50. Both tubes have gray, ladder plates; side horseshoe getters; crenelated, gapped, top mica spacers with smooth sided rectangular bottom mica spacers; copper support rods and great flashing. They

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thick glass and micanol bases

EIA Factory Codes: none

new in box US-made 6GV5 tubes tested to spec on our Paul Hart-calibrated TV7/U

These four RCA and Cunningham number / type 27 tubes tested as low goodand good on our Paul Hart-calibrated TV7/U

This new old stock-testing matched pair of Ken-Rad-MANUFACTURED

This pair of Tung-Sol type 76 triodes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box (for Tube One) matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

Top: smooth

6 milliamps/2150 micromhos and 18

This Tung-Sol 6L6GC was tested on our Maxi Matcher 2 for shorts

a round mica spacers and gray plates