RCA 1D8 1D8GT VT148 Vacuum Tube Valve Milspec NOS NIB 12BR7 They measured 31 and 32

They measured 31 and 32 where minimum (65%) is 28 and 100% is 43

This sextet of US-made 2E26 tubes was tested on our Paul Hart-calibrated TV7 or shorts

Test results to follow

but has GE 188-5 and a sutured top

new in box milspec Sylvania JAN-0A2WA tube -- and another just like it -- tested to spec on our Paul Hart-calibrated TV7/U

RCA 1D8 1D8GT VT148 Vacuum Tube Valve Milspec NOS NIB 12BR7 They measured 31 and 32This new old stock, new in box milspec RCA 1D8GT VT 148 tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE HOW TUBES WILL INTERACT WITH YOUR