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Old 10th Nov 2022, 11:14 pm   #8
Colourstar
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Join Date: Feb 2006
Location: Ilkeston, Derbyshire, UK.
Posts: 1,398
Default Re: Rather grim Thorn 1400 - Marconiphone 4649

Quote:
Originally Posted by 1100 man View Post
Before diving in and changing caps in the frame stage, I stepped back and thought about it. The scan in the picture is pretty linear - it just stops half way through. I thought it was more likely to be a low emission valve rather than leaky caps. Sure enough another PCL85 restored a perfectly linear scan!
That's a very good point- well worth remembering!

Really good to see one of these revived Nick. I'm pretty sure I have (or had) a brochure somewhere featuring your model, which dates from 1968/9. It would have been one of the first to feature the new 'square screen' 20" crts.

BRC certainly got their value out of those control knobs over the years. I have an 1968 Ultra (1400) and a 1974 Alba (1500) here which both use them!

Steve
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