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Old 06-25-2018, 10:01 PM
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cbenham cbenham is offline
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Quote:
Originally Posted by Phil Nelson View Post
The image on the CRT looks good, ------

On another note, has anyone ever seen patent documents for the Norelco Protelgram unit? I assume it was patented somewhere, although a quick search of US patents didn't turn up anything.

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html
I think probably patented in the Netherlands by Philips. I have one protelgram projection unit made by Mullard, much more robust and heavy duty. The optics are claimed to be f 0.62. Now THAT's FAST !!!
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