This matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas.
They measured 82/76 for Tube One and 85/74 for Tube Two. Minimum (65%) is 57/57.
This matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas.
They measured 82/76 for Tube One and 85/74 for Tube Two. Minimum (65%) is 57/57.