JJ 12AX7 ECC83 ECC83S Low Noise Vacuum Tube With Box Berman Plays Liszt I BUY TUBES IN BULK

I BUY TUBES IN BULK

They have double O getters

Transconductance measured 33 for Tube One and 33 for Tube Two where minimum (65%) is 26

This matched pair of GE 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U

new in box Siemens EBF89 / 6DC8 tube tested to spec on our Paul Hart-calibrated TV7/U

JJ 12AX7 ECC83 ECC83S Low Noise Vacuum Tube With Box Berman Plays Liszt I BUY TUBES IN BULKThis low noise JJ 12AX7 ECC83S dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and it measured an almost perfectly balanced 48 47 where minimum (65%) is 32 32 and 100% is 49 49. It has excellent silkscreening; excellent flashing and an O getter. Its filaments are spirally wound hence the "S" in "ECC83S" for low noise operation. I am playing it in my Pro Ject Tube Box S phono