4 Sylvania 6AV5 6AV5GT Vacuum Tubes Valves NOS NIB Lot Of Four

4 Sylvania 6AV5 6AV5GT Vacuum Tubes Valves NOS NIB Lot Of FourThis lot of four new old stock, new in box Sylvania MANUFACTURED 6AV5GT tubes tested to spec on our Paul Hart calibrated TV7 U. Two are Philco BRANDED. 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 OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE CANNOT GUARANTEE FOR

new in box GE 6JW8 / 6LX8 / ECF802 tubes tested to spec on our Paul Hart-calibrated TV7/U

copiously-illustrated book is in excellent condition

This new old stock-testing Svetlana 6550B / 6P27 perforated plate output tube was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -48 volts for shorts

Transconductance measured a nicely-balanced 68/72 where minimum (65%) is 56/56 and 100% is 86/86

Wish I knew who actually made them

" "Water In The Lake

please send them to me and I will test it

40 and 44 where minimum (65%) is 30 and 100% is 47

47 and 54 where minimum (65%) is 36 and 100% is 55

new in box RCA 7Q7 tubes tested to spec on our Paul Hart-calibrated TV7/U

great flashing a and sutured tops

marked for safe-and-easy insertion) was 28