Vintage Synth Repair

> Surely it is easier to use a step-down transformer to convert the 
> power supply. Probably safer as well.
> 
> --- In vintagesynthrepair@y..., "einarekstrom" <einarekstrom@y...> 
> wrote:
> > Hi all,
> > 
> > I recently purchased a Moog Source from the U.S., but I live in  Europe
> > where the electric current is around 230V/50Hz, as opposed to the
> > current in the U.S. which is 110V/60Hz.
> > I've understood that the convertion of a Moog Source to 230V is a
> > rather simple procedure, just rewiring something in the power 
> > supply, but I guess I would need the schematics to do so.
> > So, does someone have, or know where to find the schematics for the
> > power supply, or does someone have ANY information on the subject 
> > that would help making the convertion?
> > 
> 
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@...