[Heathkit] Regulator for PS-9000 Power Supply

[Rob Doyle]

I have a PS-9000 that I recently acquired with exactly the same
problem.  If you find a replacement part, I'd be interested.  I think
I've shaken all the trees, however.

I was just about to build a little PWB with an LM317 and a PNP driver
transistor something like:

<http://focus.ti.com/lit/ds/symlink/lm317.pdf> Figure 14

I think that can be added while leaving the unit in restore-able 
condition.

Rob WA3TGF

On 7/16/2010 11:12 AM, Mark K3MSB wrote:
> Greetings !
>
> I'm trying to fix a PS-9000 power supply for the SS-9000 Transceiver,  and I
> think the regulator is shot.
>
> The regulator (Heath Part Number 442-685) is the out of production
> UA78GKC.   I cross referenced this to ECG1926, but it seems to be out of
> production as well,  although it's still available from a few "out or
> production" sources;  I have emails out to these places for prices,  but
> nothing's come back yet.   I'm wondering if they don't want to deal with a
> customer that want's only one unit.
>
> On the off chance....   anybody have a spare in their parts box they'd care
> to sell?
>
> Thanks
>
> Mark K3MSB