Matched Pair OTK 6N1P 6H1П 6BQ7 6DJ8 ECC88 Milspec Vacuum Tubes New From Bulk Box JANCRC6F6 Milspec it has no gross issues

it has no gross issues such as hum or microphonics and will work excellently in your audio device that calls for a 12AT7

new in box Sylvania 10GK6 tubes tested to spec on our Paul Hart-calibrated TV7/U

Plate current measured 34 milliamps with a transconductance of 4310 micromhos

Its base has the requisite Telefunken diamond embossed with a 62 2 code

The Hickok-tested 6AV5 tested 4200 micromhos where new/nominal is 3900

Matched Pair OTK 6N1P 6H1П 6BQ7 6DJ8 ECC88 Milspec Vacuum Tubes New From Bulk Box JANCRC6F6 Milspec it has no gross issuesThis matched pair of new from bulk box, milspec OTK 6H1 6H1P 6BQ7 6DJ8 ECC88 dual triodes was tested on our Paul Hart modified TV7 U for shorts, gas and transconductance. There were no shorts or gas. These tubes were tested using 6BQ7 settings which are the closest US European tube type to this Soviet tube type. All have the OTK rocket and 8911 date codes. They measured 28 31 for Tube One and 29 32 for Tube Two. Minimum (65%) is 26 26 for the similar