[Elecraft] Power Supply Question

[Lamb, Dick & Judy]

This link might be helpful if your supply uses a UA723 regulator like 
the Astron.  It show an Astron schematic with a minor mod to allow float 
charging a battery without concern if the AC power fails.  The mod 
involves cutting a circuit trace at pin 4 of the UA723 and bridging the 
break with a 10K resistor.

https://ntc.cap.af.mil/images/rs-bat-mod.jpg

Dick, K0KK

G3VVT at aol.com wrote:

>Hi all,
> 
>A diode was my first try, but there are several problems with that  approach.
> 
>
>  
>