UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Bestone TRF

egerton · 28th Jul 2018, 9:33 pm

So C9 is coupling the cathode and suppressor of the RF stage to the screen of the detector. I now know that anode bend detectors work with a large negative grid bias. Can anyone explain how that works in this circuit? Is the suppressor "suppressing" the grid to this affect?

Paul

28th Jul 2018, 9:33 pm	#13
egerton Pentode Join Date: May 2018 Location: Beverley, East Riding Posts: 110	Re: Bestone TRF - power up and audio stage testing So C9 is coupling the cathode and suppressor of the RF stage to the screen of the detector. I now know that anode bend detectors work with a large negative grid bias. Can anyone explain how that works in this circuit? Is the suppressor "suppressing" the grid to this affect? Paul