Matched Quad RCA 2E26 Vacuum Tubes NOS-Testing Lot Of Four Marshall new in box milspec GE

new in box milspec GE USN-2B22 tube is still in its shrinkwrap

5-9 out of 10

5 out of ten for sonic quality

Magnavox-LABELLED 6CW5 tube tested to spec on our Paul Hart-calibrated TV7/U

Matched Quad RCA 2E26 Vacuum Tubes NOS-Testing Lot Of Four Marshall new in box milspec GEThis new old stock TESTING matched quad of RCA 2E26 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 64, 64, 64 and 67 where minimum (65%) is 44 and 100% is 68. These tubes are well made with eight wire snubbers per tube for increased mechanical rigidity and the suppression of microphony. They also have black plates and Micanol bases. WE HAVE SCORES OF