[Premium-Rx] Off Topic:HRO500 Synthesizer

[Edward Knobloch]

Hi, Scott

It could be you just need a realignment. The tuned circuits can go out 
of alignment
so the  correct harmonic of the 500 kc generator isn't selected strongly
when the "window" on the synthesizer tune dial selects a band.

A fellow advertises  an alignment service for the HRO-500 in the back
of "Electric Radio" magazine: www.nortrex.net
or nortrex at bigplaenet.com   phone 650-529-9180

(I haven't used this service, and have no idea how good it is).

73,
Ed Knobloch


Ka9p at aol.com wrote:

> I figured if anyone has done this it would be someone here...
>
> Has anyone replaced the PLL in the HRO500 or a similar radio with 
> something almost off-the-shelfish?  Between problems finding 
> transistors and the anemic harmonics generated by this early version, 
> it's fast approaching boatanchor status of a very real kind.
>
> Any ideas really appreciated.
>
> Thanks, Scott