Zenith 10EM7 Vacuum Tube Valve NOS NIB ECC82 new in box Sylvania /

new in box Sylvania / Sylvania-MANUFACTURED 6SR7 tubes tested to spec on our Paul Hart-calibrated TV7/U

hexagonal top mica spacer

It sounds fair to middlin' with many pops and ticks

58 and 60 where minimum (65%) is 42

Tube Ten: 44/1800

Zenith 10EM7 Vacuum Tube Valve NOS NIB ECC82 new in box Sylvania /This 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;