UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Kenwood TS-520SE Transceiver overhaul notes Pt1

G8UWM-MildMartin · 21st May 2019, 12:43 am

Correction to previous post:
The black plastic shaft coupler arrived and does actually just squeeze in if compressed, and works perfectly. The headline description "OD 22x15mm" is wrong! It is 15mm OD and 22mm long, as stated in the text of the listing.
AF board relay now replaced and the adjacent zero-ohm link replaced by 100R resistor to protect the contacts when discharging C51 (I can't see the need to butcher the track to the wiper as in the "survival guide"). The original relay had quite a noticeable blast mark inside the case by the relevant contact.

21st May 2019, 12:43 am	#20
G8UWM-MildMartin Heptode Join Date: Jan 2004 Location: Stockport, Greater Manchester, UK. Posts: 827	Re: Kenwood TS-520SE Transceiver overhaul notes Pt1 Correction to previous post: The black plastic shaft coupler arrived and does actually just squeeze in if compressed, and works perfectly. The headline description "OD 22x15mm" is wrong! It is 15mm OD and 22mm long, as stated in the text of the listing. AF board relay now replaced and the adjacent zero-ohm link replaced by 100R resistor to protect the contacts when discharging C51 (I can't see the need to butcher the track to the wiper as in the "survival guide"). The original relay had quite a noticeable blast mark inside the case by the relevant contact.