UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Philips 543A

Maarten · 1st May 2017, 1:25 pm

Another tip for no FM or partially no FM, is to check the anode resistors for the ECC85. If one or both have gone up, a fresh ECC85 might even get the FM to work again fo a while but at low anode voltage the emission of the valve needs to be really strong to do anything.

1st May 2017, 1:25 pm	#4
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,203	Re: Philips 543A - no F.M Another tip for no FM or partially no FM, is to check the anode resistors for the ECC85. If one or both have gone up, a fresh ECC85 might even get the FM to work again fo a while but at low anode voltage the emission of the valve needs to be really strong to do anything.