Matched Quad RCA 2E26 Vacuum Tubes NOS-Testing Lot Of Four Marshall 5-9 out of 10

5-9 out of 10

This lot of five US-made black plate

This lot of six Zenith number / type 58 stamped- / engraved-base tubes was tested on our Paul Hart-calibrated TV7/U for shorts

5 inches in circumference

All measured 1950 micromhos where new/nominal is 2000 and minimum (65%) is 1300

Matched Quad RCA 2E26 Vacuum Tubes NOS-Testing Lot Of Four Marshall 5-9 out of 10This 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