Advice needed on layout - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Skywave · 24th Feb 2009, 12:56 am

Quite: hence my Post #16 above.

Al / Skywave

Lee de Forest · 24th Feb 2009, 1:43 pm

I was looking through a repair & service book last night which has circuit diagrams for approx. 500 radios and this arrangement was used on one of the sets. I also noticed that on some of the circuits the secondary/low voltage coil of the output transformer was grounded to the chassis but on other sets it isn't. What is the function of this?

24th Feb 2009, 12:56 am	#21
Skywave Rest in Peace Join Date: Jun 2006 Location: Chard, South Somerset, UK. Posts: 7,457	Re: Advice needed on layout Quite: hence my Post #16 above. Al / Skywave

24th Feb 2009, 1:43 pm	#22
Lee de Forest Retired Dormant Member Join Date: Sep 2008 Location: Harrogate, North Yorkshire, UK. Posts: 352	Re: Advice needed on layout I was looking through a repair & service book last night which has circuit diagrams for approx. 500 radios and this arrangement was used on one of the sets. I also noticed that on some of the circuits the secondary/low voltage coil of the output transformer was grounded to the chassis but on other sets it isn't. What is the function of this?