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

jjl · 10th Mar 2006, 12:35 pm

Hello Steve

The composite output would be provided by a TV encoder chip on your card, this is intended to provide PAL, NTSC etc. output from either progressive or interlaced video output by the graphics processor. It is unlikely that the TV encoder would support 405 line output, I haven't come across any that do. Having said that, it is worth a try, but please follow Kat's warning and don't connect up your highly prized 405 line set before looking at the output waveform with a 'scope.

John

10th Mar 2006, 12:35 pm	#43
jjl Octode Join Date: Jan 2003 Location: Ware, Herts. UK. Posts: 1,082	Re: PC as a standard convertor Hello Steve The composite output would be provided by a TV encoder chip on your card, this is intended to provide PAL, NTSC etc. output from either progressive or interlaced video output by the graphics processor. It is unlikely that the TV encoder would support 405 line output, I haven't come across any that do. Having said that, it is worth a try, but please follow Kat's warning and don't connect up your highly prized 405 line set before looking at the output waveform with a 'scope. John