Matched Pair RCA Cunningham Radiotron Number / Type 49 #49 Vacuum Tubes Shoulder ST Shape Septal T13 Mica Spacers

Mica Spacers

Transconductance measured 1800/1750 micromhos for Tube One and 1800/1775 micromhos for Tube Two

top D getters and excellent flashing

though they are labeled differently

5 record cleaner and then played it on my Rega Planar 3

Matched Pair RCA Cunningham Radiotron Number / Type 49 #49 Vacuum Tubes Shoulder ST Shape Septal T13 Mica SpacersThis matched pair of RCA Cunningham Radiotron Type 49 output tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 31 and 32 where minimum (65%) is 28 and 100% is 43. They have engraved bases; dimpled sheet getters 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 SITE "LOWTECHTWOO" AND OR