6 Sylvania Type / Number 58 #58 Vacuum Tubes Valves Engraved Stamped Base Lot Of Six 19BG6G Octal T39 This new old stock-testing matched

This new old stock-testing matched pair of RCA 6CG7 / 6FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

For sale are two new old stock

new in box and tested to spec on our Paul Hart-calibrated TV7/U

These tubes were made in the Soviet Union and sent to East Germany where

This matched pair of GE 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

6 Sylvania Type / Number 58 #58 Vacuum Tubes Valves Engraved Stamped Base Lot Of Six 19BG6G Octal T39 This new old stock-testing matchedThis lot of six Sylvania number type 58 stamped engraved base tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 27, 35, 37, 44, 52 and 59 respectively, where minimum (65%) is 36 and 100% is 55. 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