UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Mullard 3-3 voltages query

PJL · 8th Apr 2021, 10:18 pm

Long connections to the output transformer could easily be the problem. I presume you mean a 560 ohm cathode resistor? what value are you using now as 50V on the EL84 cathode equates to 90mA and will burn out the EL84...

8th Apr 2021, 10:18 pm	#8
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Mullard 3-3 voltages query Long connections to the output transformer could easily be the problem. I presume you mean a 560 ohm cathode resistor? what value are you using now as 50V on the EL84 cathode equates to 90mA and will burn out the EL84...