View Single Post
Old 7th Apr 2021, 11:14 am   #4
Maarten
Dekatron
 
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 3,189
Default Re: Grundig A 7400 (CUC220)

You should not use coin cells as they will explode when charged. Rechargeable coin cells will be overcharged so no good either. Or is there a diode in the replacement module? In that case, your only problem will be periodical battery replacement.

I think there's only paper capacitors in the mains filter. Those blue ones should indeed be replaced before they blow, even though they're slightly more reliable than their Rifa cousins.
Maarten is offline   Reply With Quote