View Single Post
Old 19th Jan 2020, 10:48 am   #23
Sinewave
Octode
 
Sinewave's Avatar
 
Join Date: May 2016
Location: Oxfordshire/Bucks borders, UK.
Posts: 1,604
Default Re: Grundig Concertboy 1100

Quote:
Originally Posted by Leon Crampin View Post
The 'speaker coupling capacitor is indeed 1000uF 10V.

If you let the smoothing capacitor fail dead short on our 250V (sometimes) mains, the selenium bridge rectifier may be damaged before the 400 mA fuse blows.

Leon.
Perhaps the one with the wooden front had the slenium rectifier? This one has a silicon rectifier.

Though this year at the rallies I'll be looking out for a woody grille 1100.
__________________
Avometer, vintage Fluke and Marconi collector. Also interested in vintage Yaesu and KW.
Sinewave is offline