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

PJL · 21st Aug 2019, 9:40 pm

I restored one of these a while back. It had a lot of surface rust but I did manage to remove most of it and get it going.

I believe this is one where many of the resistors are mounted in a moulded frame mounted on top of the capacitor box. I use the cheapest PCB mount capacitors possible and fit them to veroboard making up the required values using 1uF or 0.5uF.

Potting in bitumen would have been an attempt to protect the paper capacitors from moisture a) Doesn't seem to have worked b) Is a PITA for servicing c) Is not required for modern types

21st Aug 2019, 9:40 pm	#3
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Marconiphone 196 I restored one of these a while back. It had a lot of surface rust but I did manage to remove most of it and get it going. I believe this is one where many of the resistors are mounted in a moulded frame mounted on top of the capacitor box. I use the cheapest PCB mount capacitors possible and fit them to veroboard making up the required values using 1uF or 0.5uF. Potting in bitumen would have been an attempt to protect the paper capacitors from moisture a) Doesn't seem to have worked b) Is a PITA for servicing c) Is not required for modern types