6 Sylvania Type / Number 58 #58 Vacuum Tubes Valves Engraved Stamped Base Lot Of Six 19BG6G Octal T39 This lot of four European

This lot of four European PCL805 tubes was tested on our Paul Hart-calibrated TV7/U

For sale are two new old stock

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

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

This new old stock-testing matched pair of RCA 6CG7 / 6FQ7 dual triodes 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 lot of four EuropeanThis 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