[ARC5] ARC5 transmitters...

[Kenneth G. Gordon]

On 11 Feb 2020 at 11:52, Peter Bertini wrote:

> I am modifying the PS-23 to full-wave to reduce the supply voltages.

An excellent idea. Good on ya.

> Not because there is a problem with the original design. 

OK. I misunderstood what you were saying. I apologize.
 
> Cascading the two supplies, with full wave rectification and
> filtering, will yield about 150 volts for the receivers.  Adding that
> the high voltage should provide around 500 volts for the transmitters. 
> I don't want to push them to their limits for a few extra watts. 

Neither would I. The original voltage was 550 VDC. I keep mine at that level.
 
> Also, I may want to plate modulate them someday, and I don't think
> they were designed for those peak voltages. 

No. They were not.
 
> 12.6 winding will used with half-wave doublers for each transmitter's.
> filament and relays.  Receivers will be modified (all of mine were
> hacked previously) for 12.6 volts.

Sounds good to me, Peter.

BTW, I have had "plans" for my severely hacked transmitters (and receivers) for some time 
now. I would really like to have a RX/TX combo for each band, running off 12 V dynamotors.

I really want to take at least one of these setups to our local club's Field Day in order to, at 
least, show the new hams what it was like before they were born. Most of them have no idea 
of the history of ham radio anyway, and I want to rectify that situation as much as I can.

Ken W7EKB