Zenith 10EM7 Vacuum Tube Valve NOS NIB ECC82 58 and 60 where minimum

58 and 60 where minimum (65%) is 42

hexagonal top mica spacer

This new old stock-TESTING milspec Sylvania JAN-CHS-5933 / 5933 / 807W / FU7 output tube was tested on our Maxi-Matcher 2 for shorts

new in box RCA 7B6 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing matched pair of Ken-Rad 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

Zenith 10EM7 Vacuum Tube Valve NOS NIB ECC82 58 and 60 where minimumThis new old stock, new in box Zenith 10EM7 tube tested to spec on our Paul Hart calibrated TV7 U. WE HAVE A VERY LARGE SELECTION OF VACUUM TUBES. PLEASE CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. MOST OF THE TUBES WE SELL ARE OVER 50 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 IF THEY WERE MISTREATED IN TRANSIT;