3 RCA 6C5 Engraved Bottle Vacuum Tubes Valves Lot Of Three RCA Clear Bottle Transconductance readings are 30

Transconductance readings are 30

new in box milspec Sylvania JHS-5977 tubes in this lot

They have NU 188-5 and 3-09 188-5 date/provenance codes

Transconductance measured 67 in Section One and 70 in Section Two for Tube One and 71/72 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

dark gray rounded plates and outstanding flashing

3 RCA 6C5 Engraved Bottle Vacuum Tubes Valves Lot Of Three RCA Clear Bottle Transconductance readings are 30These three RCA engraved bottle 6C5s were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 53, 54 and 64 where minimum (65%) is 50. 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