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Philips210 · 5th Sep 2022, 7:33 pm

That's a brilliant achievement designing and building a standards converter and great to see a TTL based circuit. It is a highly robust technology and fairly inexpensive to maintain, although some TTL ICs are becoming less easily available.

I built the Darius converter about 15 years ago and I'm pleased to get it all working which involved a great deal of work, but great fun all the same!
I'm currently building the Television magazine Test Card Generator May to July 1979 issues which uses 45 TTL ICs and a ZNA1034 SPG IC.

I'd love to be able to build David's standards converter if he would be happy share his circuit diagram.

Regards,
Symon

5th Sep 2022, 7:33 pm	#18
Philips210 Nonode Join Date: May 2007 Location: Redruth, Cornwall, UK. Posts: 2,573	Re: Standards Converter recommissioned. That's a brilliant achievement designing and building a standards converter and great to see a TTL based circuit. It is a highly robust technology and fairly inexpensive to maintain, although some TTL ICs are becoming less easily available. I built the Darius converter about 15 years ago and I'm pleased to get it all working which involved a great deal of work, but great fun all the same! I'm currently building the Television magazine Test Card Generator May to July 1979 issues which uses 45 TTL ICs and a ZNA1034 SPG IC. I'd love to be able to build David's standards converter if he would be happy share his circuit diagram. Regards, Symon