RCA 6HB6 Vacuum Tube Valve NOS NIB 7172 They were made by Ken-Rad

They were made by Ken-Rad although one is branded "Crosley

There is no album cover

art nouveau look

45 and 48 where minimum is (65%) is 36 and 100% is 55

It had no shorts or gas and measured 52/52 for Tube One and 56/56 for Tube Twoo where minimum (65%) is 40/40 and 100% is 62/62

RCA 6HB6 Vacuum Tube Valve NOS NIB 7172 They were made by Ken-RadThis new old stock, new in box RCA 6HB6 tube tested to spec on our Paul Hart calibrated TV7 U. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY 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 60 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS OR