This was a most unusual early radio design

That is pretty cute, especially combined with DDS for the vernier. You can do a lot with offset PLLs.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
ElectroOptical Innovations LLC 
Optics, Electro-optics, Photonics, Analog Electronics 

160 North State Road #203 
Briarcliff Manor NY 10510 

hobbs at electrooptical dot net 
http://electrooptical.net
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Phil Hobbs
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The idea is older - have a look at Barlow-Wadley XCR 30 or Racal RA-117.

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-TV
Reply to
Tauno Voipio

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