5 25E6 PL36 Vacuum Tubes Valves Lot Of Five Cunningham NOS NIB

5 25E6 PL36 Vacuum Tubes Valves Lot Of Five Cunningham NOS NIBThese five 26E5 tubes were tested (as 25 volt 6CM6s) on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 60, 68, 68, 72 and 75 respectively, where minimum (65%) is 48. Four are Philips and one is Matsushita. 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

These three RCA Type 37 triodes were tested on our Paul Hart-calibrated TV7/U for shorts

These six 6GC5 tubes were tested on our Paul Hart-calibrated TV-7/U

Tube One measured 63 while Tube Two measured 67 where minimum (65%) is 43

They tested as follows: 60

They have steel plates

Please see Picture Four

new in box (for Tube One) matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

These nine National Union number / type 27 tubes tested as good on our Paul Hart-calibrated TV7/U

It is dead quiet when the preamp is muted and has excellent frequency response even though this amp was designed for 6SN7s

a good-very good logo

THERE IS A

new in box Realistic (Radio Shack) Gold Clad 6BL8 / ECF80 tube tested to spec on our Paul Hart-calibrated TV7/U