Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods RCA 6AB7 NOS NIB but should work fine

but should work fine

new in box US-made 8BA11 tubes tested to spec on our Paul Hart-calibrated TV7/U

It measured 60/60 where minimum (65%) is 40/40 and 100% is 62/62

0-26 274 date/provenance codes and excellent flashing

Matched Pair General Electric GE 6SN7 6SN7GTB Vacuum Tubes Copper Support Rods RCA 6AB7 NOS NIB but should work fineThis matched pair of GE 6SN7GTB dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 67 64 for Tube One and 71 69 for Tube Two where minimum (65%) is 50 50. They have tall bases; side horseshoe getters; copper support rods and great flashing. I have played them in my Radio Craftsmen RC 2 monoblocks and they sound great. They are dead quiet when the volume