Dave_Amels
New Member
I'm in the process of restoring Grundig KS 500 U. Would anyone happen to know where I could get a schematic for the radio/amp chassis? I've tried Cicone electronics which has one listed on their online store without luck.
I've started without the schematic and was able to free the stuck AM / SW tuning cap. The grease had frozen the bearings.
Next problem: The glue holding the pivot in the tuning meter separated. I've found a similar triplette on the web. I'll either transfer the innards or adapt the flange. It's possible I may try to reglue the meter as well.
BTW - anyone know how to clean the grillcloth on this unit. I was almost able to get the grill off entirely but the bottom of the turntable compartment (masonite in a slot) extends to a groove cut in the rear of the grill. If I could pull the masonite back a 1/4", I could release the entire front grill. Your thoughts would be appreciated here.
Turntable: The ceramic cartridge seems to have little or no bottom end. Is this a symptom of a dying ceramic cartridge? The radio has great bottom end.
I've cleaned all the bearings and idlers... the turntable runs a bit slow. The motor had been seized... same grease as the tuning cap?
Speakers: I'll need to do the weather stripping trick on the rim. The foam turns to dust upon contact.
Any ideas?
Best,
/Dave
I've started without the schematic and was able to free the stuck AM / SW tuning cap. The grease had frozen the bearings.
Next problem: The glue holding the pivot in the tuning meter separated. I've found a similar triplette on the web. I'll either transfer the innards or adapt the flange. It's possible I may try to reglue the meter as well.
BTW - anyone know how to clean the grillcloth on this unit. I was almost able to get the grill off entirely but the bottom of the turntable compartment (masonite in a slot) extends to a groove cut in the rear of the grill. If I could pull the masonite back a 1/4", I could release the entire front grill. Your thoughts would be appreciated here.
Turntable: The ceramic cartridge seems to have little or no bottom end. Is this a symptom of a dying ceramic cartridge? The radio has great bottom end.
I've cleaned all the bearings and idlers... the turntable runs a bit slow. The motor had been seized... same grease as the tuning cap?
Speakers: I'll need to do the weather stripping trick on the rim. The foam turns to dust upon contact.
Any ideas?
Best,
/Dave