Telefunken 12AX7 ECC83 Vacuum Tube Ribbed Plate For Your Univalve Or Bottlehead 12AU7 ECC82 This matched pair of 6FQ7

This matched pair of 6FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

They have G 5R and G SR date codes

It measured 120 where minimum (65%) is 50 and 100% is 77

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

Telefunken 12AX7 ECC83 Vacuum Tube Ribbed Plate For Your Univalve Or Bottlehead 12AU7 ECC82 This matched pair of 6FQ7This Telefunken ribbed plate ECC83 12AX7 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas, noise, transconductance and gain. There were no shorts, noise or gas. It measured 39 42 where minimum (65%) is 32 32 and 100% is 49 49. It has excellent flashing and a chunky O getter. Its base has the requisite Telefunken diamond embossed with a "24" code with a backwards "7" below it. I am playing it in my Pro Ject Tube Box S phono