[Amps] Re-imagining the 30S-1

[Saandy Eban]

It all depends on what your intent is: do you want to restore it or do you
want to operate it?
If the first, you must rebuild it the way Collins did it, otherwise it
won't be a restoration.
Ic it's thd second, by all means take tbe tubes out!!!!  It's  going to
savd you a lot of money. BTW, try baking thd transformers out for a few
hours at about 80 degrees centigrade and try operate them whit a 100W lamp
in series if they were left alone long enough for the paper to dry out
undisturbed, you may be pleasantly surprized. If it's alive don't change
the topology: just replace the tubes with solid state rectifiers. You'll
save on heat generation.
Alex   4Z5KS
On Jul 12, 2015 3:19 PM, "Martin Sole (HS0ZED)" <martin at hs0zed.com> wrote:

> Well  not quite but...
>
> I've got a bit of a basket case 30S-1. Much of the power supply iron may
> well be junk. Sat submerged in flood water for well over a month and that
> was a few years back.
> Getting toward thinking about reworking it I'm wondering if I can improve
> things a bit. Not in terms of what it was but what it might be. So if you
> were rebuilding such a plate supply would you still do it the same way,
> centre tapped trafo, tube rectifiers, resonant choke filter, big bleeders?
> Or is a more modern approach, single secondary winding, bridge rectifier
> and stack of electrolytics more the way to go?
> Though there's quite a bit of interlocking and protection in the way the
> power supply is arranged it all seems fairly straightforward.
>
>
> Martin, HS0ZED
>
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