10 US-Made 6D6 Vacuum Tubes Gray Glass Lot of Ten 6AS8 Nonal T60 They are somewhat microphonic

They are somewhat microphonic

Each has six mica snubbers for increased resistance to vibration

Tube Three: 23

terrific flashing and a 3226104-3 provenance/date code

new in box RCA 8056 Nuvistor tube tested to spec on our Paul Hart-calibrated TV7/U

10 US-Made 6D6 Vacuum Tubes Gray Glass Lot of Ten 6AS8 Nonal T60 They are somewhat microphonicThese ten US made gray glass 6D6 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured (from left to right) 36, 41, 45, 51, 52, 54, 59, 59 60 and 64 where minimum (65%) is 40. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU