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

I BUY TUBES IN BULK

This matched pair of RCA-MANUFACTURED 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

black and silver bottles and 1-35 188-5 and 1-04 188-5 provenance/date codes

These tubes are very-well-built and extremely-rugged

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