If your volt/multi-meter has a diode (drop) test
function, it might be a good idea to check the
large pass transistors for short, no-short fault.
Although heat sink grease is not as popular for
new TO-3 transistor case mounts; I still remove
the pass transistors and clean the parts with
Acetone (Nail Polish Remover).
Follow the cleaning by reinstalling the TO-3 mount
pass transistors with a thin flim of heat sink
grease on the insulator and mate surfaces.
The original Astron Regulator in many versions
is problematic. Your problems reads typical, one
of the reasons I replace the entire reg board with
my upgraded circuit.
cheers,
skipp
www.radiowrench.com/sonic
> "Steaven Rogers, W4YI" <[EMAIL PROTECTED]> wrote:
> I have an Astron RS-35A power supply that has decided to stop
working.
> All is well, except for the fact that there is no output from the
output
> terminals. I have checked the UA723 Regulator and it does appear
to be
> at fault. My question is, is there anything else that I should
> checkout? I would hate to replace the regulator and hook things
back up
> and destroy something else, such as a radio.
>
> Thanks
>
> Steaven, W4YI
> IRLP Node 7520
> Echolink Node 3981
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