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FERNSEH · 20th Jun 2018, 8:15 pm

Hi Brian,
The Decca DR101 employs the two series connected smoothing chokes as the system switch solenoid. There is no DC passing through the switches, instead, the charge on C65 actuates the switching function. It's most likely that a leak in C65 is the reason why the system switch doesn't work properly.

The circuit diagram extract is from the information in the 1963/64 R & T servicing book for the Decca DR31.

DFWB.

20th Jun 2018, 8:15 pm	#29
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Decca DR101 dual standard TV Hi Brian, The Decca DR101 employs the two series connected smoothing chokes as the system switch solenoid. There is no DC passing through the switches, instead, the charge on C65 actuates the switching function. It's most likely that a leak in C65 is the reason why the system switch doesn't work properly. The circuit diagram extract is from the information in the 1963/64 R & T servicing book for the Decca DR31. DFWB. Attached Thumbnails Last edited by FERNSEH; 20th Jun 2018 at 8:23 pm.