5 Philco Number Type 37 #37 Vacuum Tubes Valves Black Plate Shoulder ST Shape Lot Of Five Azia Records I am playing it in

I am playing it in my Musical Paradise MC-3 single-ended integrated amplifier with The Eagles' seminal "Hotel California" album and it sounds terrific

6 dB / -82

Tube One measured 66/53 while Tube Two measured 67/57 where minimum (65%) is 50/50

O getter) measured 46 where minimum (65%) is 32 and 100% is 49

Tube One measured 1690 micromhos and drew 19

5 Philco Number Type 37 #37 Vacuum Tubes Valves Black Plate Shoulder ST Shape Lot Of Five Azia Records I am playing it inThese five Philco Type 37 triodes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 18, 20, 26, 30 and 3o where minimum (65%) is 23. They have black dark gray plates; dimpled sheet getters; old fashioned, coke bottle shape glass envelopes and terrific flashing. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER