10 US-Made 6D6 Vacuum Tubes Gray Glass Lot of Ten 6AS8 Nonal T60 It has an engraved /

It has an engraved / stamped base

Tube Three: 23

I played them with adapters (not included) in my Radio Craftsmen RC-2 monoblocks and they sounded great even though they test on the cusp

Each has six mica snubbers for increased resistance to vibration

RCA-BRANDED 6GB5 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 It has an engraved /These 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