UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Thorn TX90

dsergeant · 8th Aug 2006, 6:26 pm

These sort of ripple effects are ALWAYS due to ht smoothing and caused by duff electrolytics. I know you have said the HT looks fine on the scope, but look again. I think you will find there is a second filter cap on the line by the time it reaches the line transformer.

Dave

8th Aug 2006, 6:26 pm	#5
dsergeant Octode Join Date: Mar 2006 Location: Bracknell, Berkshire,UK. Posts: 1,173	Re: Thorn TX90 - line timebase problem These sort of ripple effects are ALWAYS due to ht smoothing and caused by duff electrolytics. I know you have said the HT looks fine on the scope, but look again. I think you will find there is a second filter cap on the line by the time it reaches the line transformer. Dave