UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help Pls = Grundig TK64 Motor Not running

Lucien Nunes · 25th Nov 2018, 1:26 am

Perhaps the machine is not equipped for 60Hz operation and the switch is redundant, with the 50Hz cap being made up of the two caps permanently connected in parallel to the 50Hz position.

It would be helpful to get resistance readings from the windings of a known good motor for comparison. I used to be aware of a typical ratio of winding resistances of the windings of Papst Außenläufer motors, but have long since forgotten and I'm not near any at the moment to check.

25th Nov 2018, 1:26 am	#6
Lucien Nunes Rest in Peace Join Date: Apr 2008 Location: London, UK. Posts: 2,508	Re: Help Pls = Grundig TK64 Motor Not running Perhaps the machine is not equipped for 60Hz operation and the switch is redundant, with the 50Hz cap being made up of the two caps permanently connected in parallel to the 50Hz position. It would be helpful to get resistance readings from the windings of a known good motor for comparison. I used to be aware of a typical ratio of winding resistances of the windings of Papst Außenläufer motors, but have long since forgotten and I'm not near any at the moment to check.