"Nicolae Santean" wrote in message
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Hello everybody,

I have a technical question about old analog receivers.

How difficult would be to replace/modify the local oscillator(s) of an
analog receiver in order to make it PLL? Is it actually feasible?

Thanks a lot,

Nic. Santean
http://www.csd.uwo.ca/~nic



Are you looking for anything in particular such as a digital frequency
display? Those can be added externally:

http://aade.com/#dfd

Are you looking for improved frequency stability? There's alot of claims
made for the Huff 'n' Puff oscillator stabilizer circuit.

Frank Dresser