Matched Quad RCA 6CL6 Vacuum Tubes Valves RCA Victor LSP-4717 Please note Tube Two’s centering

Please note Tube Two’s centering pin is missing

I am playing them with adapters (not included) in my Radio Craftsmen RC-2 monoblocks and they sound great

This new old stock-testing Sylvania 6L6GC was tested on our Maxi Matcher 2 for shorts

Both tubes have thin cracks in their bases

This tube has anode radiators for cooler operation and longer tube life

Matched Quad RCA 6CL6 Vacuum Tubes Valves RCA Victor LSP-4717 Please note Tube Two’s centeringThis matched quad of RCA 6CL6 tubes were tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured (From left to right): 42, 42, 42 and 45 where minimum (65%) is 30. 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