Matched Pair General Electric GE 12AU7 12AU7A ECC82 Vacuum Tubes Copper Support Rods L1 " "Do Not Awaken Memories

" "Do Not Awaken Memories

This new old stock-testing National Union globe / balloon-style bottle number 36 tube tested 42 on our Paul Hart-calibrated TV7/U where minimum (65%) is 26 and 100% is 40

Tube Two measured 3120/27

where minimum (65%) is 29 and 100% is 45

new in box Sylvania 38HE7 tube tested to spec on our Paul Hart-calibrated Hickok TV7/U

Matched Pair General Electric GE 12AU7 12AU7A ECC82 Vacuum Tubes Copper Support Rods L1 " "Do Not Awaken MemoriesThis matched pair of General Electric 12AU7 ECC82 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 70 74 while Tube Two measured 71 69 where minimum (65%) is 56 56 and 100% is 87 87. These tubes have narrow 19 MM plates, each with three rectangular holes; O getters; copper support rods and good flashing. I have played them in my Radio Craftsmen RC 2