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

FERNSEH · 17th Jun 2017, 4:52 pm

"Any chance of building me a 405 receiver to fit an old wardrobe I pulled off the tip?"

Hi John,
the wood can be used for my next cabinet project.

An interlace filter circuit must be reinstated into the receiver. Rather than the Pye two diode circuit favoured by the engineer who did all those modifications I'm returning frame sync circuit back to the original EMI design consisting of one half of a D63/6H6 double-diode. In order to give the other diode section something to do a sync pulse clipper will be introduced into the anode circuit of the sync separator valve. This is part of the sync separation circuit of the later model 1806.

DFWB.

17th Jun 2017, 4:52 pm	#103
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: HMV 1804 Television. "Any chance of building me a 405 receiver to fit an old wardrobe I pulled off the tip?" Hi John, the wood can be used for my next cabinet project. An interlace filter circuit must be reinstated into the receiver. Rather than the Pye two diode circuit favoured by the engineer who did all those modifications I'm returning frame sync circuit back to the original EMI design consisting of one half of a D63/6H6 double-diode. In order to give the other diode section something to do a sync pulse clipper will be introduced into the anode circuit of the sync separator valve. This is part of the sync separation circuit of the later model 1806. DFWB. Last edited by FERNSEH; 17th Jun 2017 at 5:19 pm.