UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Trio 9R-59D receiver problems.

Station X · 26th Jan 2019, 11:36 am

Are the capacitors connected the right way round? The arrows on the casing point to the NEAGTIVE end.

EDIT. Forget that, I can see the grooves at the POSITIVE end of the caps.

Short of moving the output transformer around there's nothing more I can suggest. The leads to the output transformer look to be very close to the mains transformer which is not good.

You should not assume that the existing smoothing caps are good.

Eliminating the hum may be beyond your capabilites.

26th Jan 2019, 11:36 am	#147
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Trio 9R-59D receiver problems. Are the capacitors connected the right way round? The arrows on the casing point to the NEAGTIVE end. EDIT. Forget that, I can see the grooves at the POSITIVE end of the caps. Short of moving the output transformer around there's nothing more I can suggest. The leads to the output transformer look to be very close to the mains transformer which is not good. You should not assume that the existing smoothing caps are good. Eliminating the hum may be beyond your capabilites. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.