6 US-Made 6GC5 Vacuum Tubes Valves Lot Of Six Gray Glass I LISTEN TO THESE TUBES

I LISTEN TO THESE TUBES IN TUBE EQUIPMENT

Sylvania-BRANDED 8BQ5 tube tested to spec on our Paul Hart-calibrated TV7/U

Transconductance measured 44/45 for Tube One and 45/45 for Tube Two where minimum (65%) is 25/25 and 100% is 38

Transconductance measures the efficiency of a tube and also serves as a tube life measurement proxy as tube efficiency diminishes with age

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

6 US-Made 6GC5 Vacuum Tubes Valves Lot Of Six Gray Glass I LISTEN TO THESE TUBESThese six 6GC5 tubes were tested on our Paul Hart calibrated TV 7 U. They measured 52, 62, 63, 67, 68 and 69 where minimum is 45 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 NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE