Vintage Synth Repair

Einar,

You may want to check with digikey.com for the Power-One internal 
PSUs.  I'm not sure what the power requirements for the Source are, 
as mine's somewhere int the basement. I used a Power One on my ARP 
2600 and it supports both voltages.  It may be too big to fit in the 
case though.  I'm not too sure of the dimensions for the required 
power output.

Good luck!

Guv


--- In vintagesynthrepair@y..., "einarekstrom" <einarekstrom@y...> 
wrote:
> Buying a step-down transformer is my last resort, if I can't find 
any 
> other solution. 
> But still I would prefer getting the power supply permanently 
> converted to 230V. 
> There's a potential problem in using a step-down transformer. If I 
> remember correctly it says on the back panel of the Source that it 
> accepts 110V/60Hz and 120V/50Hz, but the ónly converter I can find 
in 
> the shops in here is 110V/50Hz, which apparently doesn't fit the 
> Source then(?).
> 
> Anyway, as i understood, the power supply of the Source is built in 
> such a way that this convertion should be easy to make, I just need 
> the schematics...
> 
> Thanks,
> Einar
> 
> 
> --- In vintagesynthrepair@y..., Tom Moravansky <tom@s...> wrote:
> > > Surely it is easier to use a step-down transformer to convert 
the 
> > > power supply. Probably safer as well.
> > > 
> 
> 
> > > 
> > I respectfully disagree.  I'm in the US and I've purchased gear 
from
> > all over the world.  Whenever I have the service manual and can
> > easily change the power over to 110v, I do it.  even so, I still
> > have a number of 240v only pieces.  My solution for those was to 
> either
> > buya small Radio Shack step-up transformer ($40 each) or a larger
> > 300/500 watt step up transformer and a European power strip and 
plug
> > multiple devices into that.  The problem is that this solution 
> requires
> > that all your "non-standard" power gear is in the same general
> > location.
> > 
> > It also can lead to stupid mistakes that you make when you're 
tired 
> or
> > in a hurry:  I have 2 Bel delays one is still 240v and the other 
is 
> 120v.
> > Both use an IEC connector in the back.  I had them racked up and 
was
> > in the process of making cables and testing out all my effects.  I
> > had a step-up transformer to test Bel unit #1 (240v) and after 
> checking it
> > out, I powered it down and moved the power cord to the next unit.
> > Powered it up and found out what happens to power supply caps 
when 
> an
> > overvoltage is applied (smoke, noise, and electrolytic fluid 
leaking
> > all over the circuit board).  Fortunately, the unit still works 
> after
> > this experience (although I'm still recapping the PS board and 
> checking out
> > the regulators).
> > -- 
> > 
> > 
> 
______________________________________________________________________
> _
> > Tom Moravansky                                    tom@s...