8 RCA 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Eight December 03 2024 Transconductance measured 49/50 for Tube

Transconductance measured 49/50 for Tube One and 50/50 for Tube Two (RCA-LABELED)

Tube One is labeled "JAN CRC-6V6Y" while Tube Two is labeled "JAN CRC-6V6

even though they test on the cusp

This new old stock-testing matched pair of milspec Raytheon black glass VT-107-A / JAN-CRP-6V6-GT output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

These tubes test poorly but should work in many applications

8 RCA 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Eight December 03 2024 Transconductance measured 49/50 for TubeThis lot of eight new old stock, new in box RCA 6S4A tubes tested to spec on our Paul Hart calibrated TV7 U. Seven are 6S4As and one is a 6S4, 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 AUTOMATICALLY INSURED UP TO $100. ETSY