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1980s_john · 27th Feb 2020, 9:53 pm

Thanks for the tips, I'll try them when I'm back next week. I checked all the electrolytic caps with an LCR meter and all bar one were OK. Are the two output transistors meant to be a matched pair? I only have a simple transistor checker on a DMM so no idea on test collector current.
Regards,
John

27th Feb 2020, 9:53 pm	#9
1980s_john Tetrode Join Date: Apr 2005 Location: Ipswich, Suffolk, UK. Posts: 59	Re: Grundig Concert Boy 1100 (again) Thanks for the tips, I'll try them when I'm back next week. I checked all the electrolytic caps with an LCR meter and all bar one were OK. Are the two output transistors meant to be a matched pair? I only have a simple transistor checker on a DMM so no idea on test collector current. Regards, John