UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

paulsherwin · 9th Oct 2017, 4:09 pm

Just use the batteries.

You can eliminate anything pulling down the supply line by measuring the current. Quiescent current should be well under 20mA.

Have you given the wavechange switch contacts a thorough clean?

9th Oct 2017, 4:09 pm	#25
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,934	Re: Grundig Concert Boy 1100 Just use the batteries. You can eliminate anything pulling down the supply line by measuring the current. Quiescent current should be well under 20mA. Have you given the wavechange switch contacts a thorough clean?