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Title: Wanted VFO for Central Electronics 20A Post by: wa2tak on December 15, 2022, 09:41:04 AM I need one to continue my work on mine.
VFO output needs to be from 5000Kc to 5500kc. Title: Re: Wanted VFO for Central Electronics 20A Post by: wa2tak on December 19, 2022, 12:37:54 PM Welllllllllllll....
For those of you interested...I've found three 5Mhz vfo schmatics: QST Dec 1985 p 39 73 Mag Jan 1977 p116 Ham Radio Mag 1972 p27 It appears that they all output LOW RF VOLTAGES. And, as I "understand" it...the 20A 'wants' 9 v Pk-Pk. Now...as these are 'vintage' units...I'd THINK that they'd work on vintage xmtr's. "What to do"? Title: Re: Wanted VFO for Central Electronics 20A Post by: wa2tak on December 19, 2022, 12:49:33 PM PS AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Here are the links to the vfo's https://worldradiohistory.com/Archive-DX/QST/80s/QST-1985-12.pdf https://worldradiohistory.com/Archive-DX/73-magazine/73-magazine-1977/73-magazine-01-january-1977.pdf https://worldradiohistory.com/Archive-DX/Ham%20Radio/70s/Ham-Radio-197201.pdf |