4 RCA Cunningham Number Type 27 #27 Vacuum Tubes Lot Of Four Duodecar TA1 Transconductance measured 44 and 48

Transconductance measured 44 and 48 where minimum (65%) is 35

audible in quiet passages and inaudible in moderate-loud passages and louder

top slant D getters and excellent flashing

I misplaced part of the box

4 RCA Cunningham Number Type 27 #27 Vacuum Tubes Lot Of Four Duodecar TA1 Transconductance measured 44 and 48These four RCA and Cunningham number type 27 tubes tested as low goodand good on our Paul Hart calibrated TV7 U. Transconductance readings are 25, 27, 32 and 36 where minimum (65%) is 25. 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