UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Grundig Elite-Boy 500 maintenance manual in German

Boulevardier · 10th Dec 2019, 12:18 am

Thanks Torben. Had a quick look, and you're right - the Yacht Boy's ratio detector circuit is almost identical to the Elite 500 - with one puzzling difference - the YB circuit had a variable resistor in one diode "leg"where the EB has only a fixed (680 ohm) resistor. I know that it is normal to have such a variable resistor in this position, I just wonder why the Yacht Boy needs one but the Elite Boy doesn't?

Anyone have any ideas?

Mike

10th Dec 2019, 12:18 am	#23
Boulevardier Octode Join Date: Sep 2017 Location: Bristol, UK. Posts: 1,659	Re: Grundig maintenance manual in German - can anyone help? Thanks Torben. Had a quick look, and you're right - the Yacht Boy's ratio detector circuit is almost identical to the Elite 500 - with one puzzling difference - the YB circuit had a variable resistor in one diode "leg"where the EB has only a fixed (680 ohm) resistor. I know that it is normal to have such a variable resistor in this position, I just wonder why the Yacht Boy needs one but the Elite Boy doesn't? Anyone have any ideas? Mike Last edited by Boulevardier; 10th Dec 2019 at 12:41 am.