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

Focus Diode · 12th Sep 2018, 7:18 pm

Thanks Keith. They would be great. I'll PM you with my address.

A little more work this evening while I await the arrival of the 10uf high voltage caps.

I was uncomfortable about the width control being set at maximum so the respective scan correction capacitors were replaced then the width was set to mid-way. I noticed the 600pF capacitor had already been replaced which turns out to be the only evidence of previous repair work done to the set apart from valve replacements.

I was gratified to note near full width with the 405-line boost voltage at 640v which is below that specified in the service notes (670V on 405, 730V on 625). The occasional ticking from the EHT tray rectifiers has also thankfully stopped.

Now I'll see if I can sort out the non vertical linearity.

Cheers
Brian

12th Sep 2018, 7:18 pm	#30
Focus Diode Octode Join Date: Jan 2006 Location: Borough of Gateshead, UK. Posts: 1,420	Re: Stuck on a BRC 1400! Thanks Keith. They would be great. I'll PM you with my address. A little more work this evening while I await the arrival of the 10uf high voltage caps. I was uncomfortable about the width control being set at maximum so the respective scan correction capacitors were replaced then the width was set to mid-way. I noticed the 600pF capacitor had already been replaced which turns out to be the only evidence of previous repair work done to the set apart from valve replacements. I was gratified to note near full width with the 405-line boost voltage at 640v which is below that specified in the service notes (670V on 405, 730V on 625). The occasional ticking from the EHT tray rectifiers has also thankfully stopped. Now I'll see if I can sort out the non vertical linearity. Cheers Brian Attached Thumbnails