3 Sylvania 12Q7 12Q7G Vacuum Tubes Valves NOS NIB Shoulder / ST-Shape Lot Of Three RCA Victor LSP-1850 but has GE 188-5 and

but has GE 188-5 and a sutured top

Transconductance measured 57 for Tube One and 65 for Tube Two where minimum (65%) is 36 and 100% is 55

This lot of three Sylvania 12BR7 tubes tested to spec on our Paul Hart-calibrated TV7/U

charcoal plates and excellent flashing

3 Sylvania 12Q7 12Q7G Vacuum Tubes Valves NOS NIB Shoulder / ST-Shape Lot Of Three RCA Victor LSP-1850 but has GE 188-5 andThis lot of three Sylvania 12Q7G tubes tested to spec on our Paul Hart calibrated TV7 U. They are the older Shoulder Coke bottle variety. 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