5 Ken-Rad Number Type 27 #27 Vacuum Tubes Lot Of Five 9U8 Transconductance readings are 15

Transconductance readings are 15

new in box Amperex 6EA7 / 6EM7 tube tested to spec on our Paul Hart-calibrated TV7/U tube tester

Tube Two probably has a piece of broken glass in it

There were no shorts or gas and they measured as follows:

These four RCA and Cunningham number / type 27 tubes tested as low goodand good on our Paul Hart-calibrated TV7/U

5 Ken-Rad Number Type 27 #27 Vacuum Tubes Lot Of Five 9U8 Transconductance readings are 15These five Ken Rad number type 27 tubes tested as good on our Paul Hart calibrated TV7 U. Transconductance readings are 26, 27, 31, 34 and 35 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 MAIL ARE