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mark pirate · 2nd Mar 2015, 10:24 am

Hi John, The effect is weird, there is much more brightness available than my Baird T164. That set has a really low emission CRM 92. and as you rightly say, will produce a correctly contrasted picture, albeit incredibly dim.

C22 & C23 are new, so I will check the D77 (EB91) and the limiter circuitry.
I forgot to mention that turning up vision interference limiter actually improves the picture somewhat?

I ran the set up from cold last night. it needed a tweak to the line hold at first, but then ran fine for over two hours and apart from the picture issues, it was rock solid.

Mark

2nd Mar 2015, 10:24 am	#123
mark pirate Dekatron Join Date: Mar 2008 Location: Worthing, West Sussex, UK Posts: 5,185	Re: Marconiphone VRC74DA Hi John, The effect is weird, there is much more brightness available than my Baird T164. That set has a really low emission CRM 92. and as you rightly say, will produce a correctly contrasted picture, albeit incredibly dim. C22 & C23 are new, so I will check the D77 (EB91) and the limiter circuitry. I forgot to mention that turning up vision interference limiter actually improves the picture somewhat? I ran the set up from cold last night. it needed a tweak to the line hold at first, but then ran fine for over two hours and apart from the picture issues, it was rock solid. Mark