Matched Pair Sylvania 7B7 Vacuum Tubes 6H6 Octal Support Rods: copper

Support Rods: copper

These six new old stock-testing

milspec Sylvania 3Q5GT / JAN-CHS-3Q5GT / VT-221 tubes tested to spec on our Paul Hart-calibrated TV7/U

IF YOU FEAR DAMAGE OR LOSS OF YOUR PARCEL IN TRANSIT

Matched Pair Sylvania 7B7 Vacuum Tubes 6H6 Octal Support Rods: copperThis nearly perfectly matched pair of Sylvania 7B7 tubes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 58 for Tube One and 59 for Tube Two where minimum (65%) is 43 and 100% is 66. They have mica snubbers for increased vibration resistance and lowered microphonics and great flashing. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT.