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Old 23rd Jul 2015, 8:26 pm   #17
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: Very rusty ViewMaster TV

I have been playing around with the View master this evening.
One thing I forgot to mention was the excellent sound obtained from this chassis. Not a trace of vision buzz and the KT61 sound output valve is driven to full output. All this with just one sound RF stage. It certainly was a very well thought out design.

Actually the moving picture is quite acceptable with the very long persistance tubes. This one was taken with a Dumont 7" type 7BP7, CRT that is very similar to the 5" 5FP7 fitted at first.

The blue picture on the back of the tube is bright and finely focused. Such a pity about that thick afterglow coating at the front! Must not moan..Lucky to have what we have got. The picture brightness even with a reduced contrast setting is good even with full workshop lighting. Regards, John.
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