Matched Pair General Electric GE 6SN7 6SN7GTA Vacuum Tubes Copper Support Rods NOS-Testing Dutch Amperex THE BASE HAS BEEN MARKED

THE BASE HAS BEEN MARKED FOR SAFE AND EASY INSERTION

(New 6AU7s typically test within a standard deviation of 2400 micromhos)

It sounds very good with an occasional pop and tick audible in the pianissimo passages

new in box Westinghouse WL5642 tubes

Matched Pair General Electric GE 6SN7 6SN7GTA Vacuum Tubes Copper Support Rods NOS-Testing Dutch Amperex THE BASE HAS BEEN MARKEDThis new old stock TESTING matched pair of GE 6SN7GTA dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 82 74 for Tube One and 84 74 for Tube Two where minimum (65%) is 50 50 and 100% is 77 77. They have short bases; white silkscreening; side horseshoe getters; copper support rods and great flashing. Their date provenance codes are 3 22 188 5 and 4 39