[ARC5] Re: Getting an "ARC-5 " Transmitter Running

[David Stinson]

Roger Basford wrote:
> Next steps will be to clean the roller-coasters, run the tubes through 
> my tester and change the triple 0.05 uF bathtub caps as per Dave's list 
> and then take a look at the BC-696 and BC-457. Very impressed by the 
> keying relays, who needs sidetone with those clunking away! :-))
> 

Thanks for writing, Roger.
Stabilizing the Osc. B+ is indeed a good idea;
I wrote as I did only because that is how the original
engineers designed it.  If anyone would like to peg
the Osc B+ rail at the "speced" 200VDC, there are
100 volt zeners available these days
that will handle the load; a couple of them will do.
Of course, two VT-105s would be prettier ;-).
A suggestion, if you please-
It's actually better if you deactivate the antenna relay.
Just unsolder one lead and roll the coiled contact around
so it stays connected all the time.  It will certainly key
with that relay switching, but it's faster and less noisy
if you don't use it.
Kind Regards and wishes for 2005,
David S.