>and of course, there's always the opportunities that mods give for
>problems/mistakes/etc. i think your sanity is worth the 100 bucks you may
> >drop on a good TF. get one rated for 3 or 4X your wattage.
Yeah, the more I think about it the more it makes sense to run it on a
step-down; even if I'll actually convert it to European voltage later on.
> get one rated for 3 or 4X your wattage.
Won't this cause overvoltage? With the copper resistance being compensated
for nominal output voltage at _nominal_ load?
What I had in mind was something like that:
Get an oversized toroidial with 230V center tapped primary, and somthing
like 2 x 5V secondaries.
Then use the primary side as a step-down autotransformer, and (if necessary)
use the secondaries to fine-adjust the output voltage by connecting one or
both in series to the upper or lower half of the primary.
Good idea? Bad idea?
JH.
rlmusic <
rlmusic@...> wrote: Hi JH
I would just run her on a step-down until you can get someone with
experience to do this conversion for you (KSR if your UK based). Kent at
KSR might respond to this thread anyway but his email is:
kent_spong@... RS Components make a good step-down which I have used many times in the
past
(SAT 300)�this unit rated at 300W is my recommendation and they cost
around
�45 + Vat and shipping which is much less than repairing a fried CS80 and
a
full course of anti-depressants...
Regards
Richard Lawson
www.rlmusic.co.uk
Tel: +44 (0) 1189 472474
Mobile: +44 (0) 7986 470853
From:
yamahacs80@yahoogroups.com [mailto:
yamahacs80@yahoogroups.com] On
Behalf Of JH.
Sent: 01 January 2008 13:11
To:
yamahacs80@yahoogroups.com Subject: [yamahacs80] CS-80 mains voltage conversion advice?
Hi,
first of all: A Happy New Year to everybody!
Now I have my CS-80 standing here - undamaged - thanks to the great packing
(double boxes!) and shipping from Scott Rider.
I want to convert it to 240V now. (It's a 117V American model.)
Electrically, nothing could be easier. The wires are colour coded (except
for one discrepancy of Blue vs. Brown).
But I have my doubts about the mechanical part.
So my question is: how hard is it to do this voltage conversion?
The unused wires from the mains transformer are so short that I fear I have
to completely remove the power supply block to get access ...
How hard is that? I'm afraid with removing and re-installing that heavy
block, some wire contacts may break ...
The alternative, of course, is to simply leave it as it is and to use an
external step-down transformer.
This will cost some money, but at the point I am now (buying synth, paying
for shipping and customs and VAT), just a little more money won't make a
difference.
So, what should I do? Convert the synth or go for a step-down transformer?
What have ∗you∗ done with your imported CS-80s ?
In case of step-down: has anybody used an autotransformer? (If I'm not
mistaken, I'd get away with a 100W rated auto transformer for the CS-80's
180W of power consumption, no?)
Any advice welcome.
JH.
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