Sylvania GM 6R7 Vacuum Tube NOS NIB Otto Klemperer Transconductance: 1264/1360 and

Transconductance: 1264/1360 and

Minimum (65%) is 57/57 and 100% is 88/88

Six links are available

Transconductance measured 4100/3400 micromhos

black plate

Sylvania GM 6R7 Vacuum Tube NOS NIB Otto Klemperer Transconductance: 1264/1360 andThis new old stock, new in box Sylvania MANUFACTURED, GM BRANDED 6R7 tested to spec on our Paul Hart calibrated TV7 U 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 PROTECTION