[AMRadio] RE: homebrew receiver progress

[Brett Gazdzinski]

Eddy,
I do have some Bill Orr handbooks, good stuff in there.

I built the power supplies, both the high voltage and low voltage
and wired up all the filaments on the homebrew receiver tonight.
Still some work to do on the power, I need to get a low voltage 
for the frequency display backlight and S meter led's.

A really stable homebrew vfo might be hard for me.
The LO in the receiver is ok, once it warms up, so maybe
it can be done.

There used to be a company that made a kit, a DDS vfo, with memories
and so on, which would be cool, but I cant find it anymore, I think it was 
S+S who sold it.
Tubes and caps are more fun anyway.

Brett
N2DTS
 
> 
> Hi Brett...
> 
> Just goes to show you can't keep a good man down! Hi Hi You sure are a
> prolific builder!
> 
> If you have any of the old Bill Orr RADIO HANDBOOKs from the 
> 1950's, Brett,
> he featured neat mono-band AM transceivers therein---I recall (was it
> the '58 edition..?) he had a neat 10-meter design, but it was 
> strictly low
> power. Still a nice package, though, & on 10 who needs QRO anyway...?
> 
> Building a stable, homebrew VFO is NOT an impossible 
> task---in fact, there
> was an excellent piece by Walt Hutchens in an older ELECTRIC 
> RADIO magazine
> that tackled this very project.
> 
> A few months back I built a HB VFO for 40-meters that used NO SOLID
> DIELECTRIC CAPACITORS WHATEVER---everything was air 
> dielectric. Even the
> coil was an air core B&W miniductor! This I did to try & 
> eliminate/minimize
> drift over time without worry about NPO caps, etc. etc.
> 
> It worked, too, in the short run---really stable for the 
> first two hours,
> or so, but then it started to drift ever so slowly. Anyway, 
> it was a fun
> experiment...
> 
> Good luck with yours!
> 
> ~73!~ Eddy VE3CUI - VE3XZ
>