UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Were there any all-valve PAL colour-TVs?

red16v · 12th Aug 2019, 6:57 pm

Wasn't there a story that Dr Bruch's early experimental PAL sets couldn't handle a switching burst at the end and start of the burst blanking period in the vertical interval and that's why he invented his Bruch blanking sequence to get over this problem?

Seeing as how he would have been working on early prototype sets perhaps they were all valve?

12th Aug 2019, 6:57 pm	#29
red16v Heptode Join Date: Jul 2006 Location: Winchester, Hampshire, UK. Posts: 639	Re: Were there any all-valve PAL colour-TVs? Wasn't there a story that Dr Bruch's early experimental PAL sets couldn't handle a switching burst at the end and start of the burst blanking period in the vertical interval and that's why he invented his Bruch blanking sequence to get over this problem? Seeing as how he would have been working on early prototype sets perhaps they were all valve?