Matched Pair Sylvania 6BL7 6BL7GTA Vacuum Tubes Triple 3 Mica Black Plates Zenith 2BU2 NOS NIB WE HAVE THOUSANDS OF VINTAGE

WE HAVE THOUSANDS OF VINTAGE ELECTRONIC ITEMS

vertical support rods and triple mica spacers for lowered microphonics and

This Amperite 115NO10T relay tube tested to spec on our Hickok 800

but still usable especially in experimental situations where the tube might be damaged -- on our Paul Hart-calibrated TV7/U

This Moss Music Group DBX pressing has no surface noise but a very few pops and ticks

Matched Pair Sylvania 6BL7 6BL7GTA Vacuum Tubes Triple 3 Mica Black Plates Zenith 2BU2 NOS NIB WE HAVE THOUSANDS OF VINTAGEThis matched pair of Sylvania 6BL7GT dual triodes was tested on our TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 47 44 while Tube Two measured 48 43 where minimum (65%) is 25 25 and 100% is 38. 5 38. 5. These tubes have copper support rods; beefy black plates: three mica spacers for improved mechanical stability and low microphonics; top D getters and anode radiators for cooler operation and extended life.