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

Transconductance: 1264/1360 and

There were no shorts or gas and it measured / where minimum (65%) is 40/40 and 100% is 62/62

Six links are available

5 milliamps/2580 micromhos for Tube One and 25

top harp/lyre getters and black anode radiators for improved cooling and longer tube life

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