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

FStephenMasek · 26th Feb 2020, 6:14 am

Indeed, some of these radios are now old enough that mica capacitors are failing.

Silver migration / whiskers is indeed a problem, mainly in slug tuned (adjustable inductance) IF transformers which have the capacitors built-in. Those can usually be repaired by cutting out the original capacitor(s) and installing a new one(s) under the chassis.

26th Feb 2020, 6:14 am	#33
FStephenMasek Pentode Join Date: Jul 2011 Location: Mission Viejo, California, USA Posts: 144	Re: Defiant MSH902 Indeed, some of these radios are now old enough that mica capacitors are failing. Silver migration / whiskers is indeed a problem, mainly in slug tuned (adjustable inductance) IF transformers which have the capacitors built-in. Those can usually be repaired by cutting out the original capacitor(s) and installing a new one(s) under the chassis.