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Maestro Rhythm Jester - Conversion to UK power supply?

Maestro Rhythm Jester - Conversion to UK power supply?

2011-06-04 by nervejam

I have a Maestro Rhythm Jester (RJ-1) drum machine, which I bought years ago from Canada (I think).
It has Canadian power input (117v, 50/60 Hz). Says 3W on the back.
I'm in the UK, and want to convert to 230v/50Hz. Unfortunately, I have NO other info on this machine.
The Canadian transformer has two black wires going into the primary, and two blue ones coming out of the secondary. The code on the transformer says KS-T-0013. Anyone have any idea what sort of replacement transformer I need? Or how to analyse the existing one?
All help gratefully received..

RE: [vintagesynthrepair] Maestro Rhythm Jester - Conversion to UK power supply?

2011-06-04 by Brian

Your simplest bet is to buy a small auto-transformer that will convert the
230V UK mains to 117V Canadian mains, readily available from maplin, TS
Components etc.

 

Regards

Brian G3OYU
Show quoted textHide quoted text
From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of nervejam
Sent: 04 June 2011 2:47
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Maestro Rhythm Jester - Conversion to UK power
supply?

 

  

I have a Maestro Rhythm Jester (RJ-1) drum machine, which I bought years ago
from Canada (I think).
It has Canadian power input (117v, 50/60 Hz). Says 3W on the back.
I'm in the UK, and want to convert to 230v/50Hz. Unfortunately, I have NO
other info on this machine.
The Canadian transformer has two black wires going into the primary, and two
blue ones coming out of the secondary. The code on the transformer says
KS-T-0013. Anyone have any idea what sort of replacement transformer I need?
Or how to analyse the existing one?
All help gratefully received..

Re: Maestro Rhythm Jester - Conversion to UK power supply?

2011-06-04 by nervejam

I'd thought of that, but I was trying to make a "clean" job of it.
Hmm. If I could borrow a converter, I could measure the voltage output and find one that had the same output from 230v..
Pity the PCB doesn't have "0v" and "+Xv"..

--- In vintagesynthrepair@yahoogroups.com, "Brian" <brian@...> wrote:
Show quoted textHide quoted text
>
> Your simplest bet is to buy a small auto-transformer that will convert the
> 230V UK mains to 117V Canadian mains, readily available from maplin, TS
> Components etc.
> 
>  
> 
> Regards
> 
> Brian G3OYU
> 
>  
> 
> From: vintagesynthrepair@yahoogroups.com
> [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of nervejam
> Sent: 04 June 2011 2:47
> To: vintagesynthrepair@yahoogroups.com
> Subject: [vintagesynthrepair] Maestro Rhythm Jester - Conversion to UK power
> supply?
> 
>  
> 
>   
> 
> I have a Maestro Rhythm Jester (RJ-1) drum machine, which I bought years ago
> from Canada (I think).
> It has Canadian power input (117v, 50/60 Hz). Says 3W on the back.
> I'm in the UK, and want to convert to 230v/50Hz. Unfortunately, I have NO
> other info on this machine.
> The Canadian transformer has two black wires going into the primary, and two
> blue ones coming out of the secondary. The code on the transformer says
> KS-T-0013. Anyone have any idea what sort of replacement transformer I need?
> Or how to analyse the existing one?
> All help gratefully received..
>

Re: Maestro Rhythm Jester - Conversion to UK power supply?

2011-06-04 by nervejam

Maplins - £24.99 for a 45W adapter! :(

--- In vintagesynthrepair@yahoogroups.com, "nervejam" <paul.rak@...> wrote:
Show quoted textHide quoted text
>
> I'd thought of that, but I was trying to make a "clean" job of it.
> Hmm. If I could borrow a converter, I could measure the voltage output and find one that had the same output from 230v..
> Pity the PCB doesn't have "0v" and "+Xv"..
> 
> --- In vintagesynthrepair@yahoogroups.com, "Brian" <brian@> wrote:
> >
> > Your simplest bet is to buy a small auto-transformer that will convert the
> > 230V UK mains to 117V Canadian mains, readily available from maplin, TS
> > Components etc.
> > 
> >  
> > 
> > Regards
> > 
> > Brian G3OYU
> > 
> >  
> > 
> > From: vintagesynthrepair@yahoogroups.com
> > [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of nervejam
> > Sent: 04 June 2011 2:47
> > To: vintagesynthrepair@yahoogroups.com
> > Subject: [vintagesynthrepair] Maestro Rhythm Jester - Conversion to UK power
> > supply?
> > 
> >  
> > 
> >   
> > 
> > I have a Maestro Rhythm Jester (RJ-1) drum machine, which I bought years ago
> > from Canada (I think).
> > It has Canadian power input (117v, 50/60 Hz). Says 3W on the back.
> > I'm in the UK, and want to convert to 230v/50Hz. Unfortunately, I have NO
> > other info on this machine.
> > The Canadian transformer has two black wires going into the primary, and two
> > blue ones coming out of the secondary. The code on the transformer says
> > KS-T-0013. Anyone have any idea what sort of replacement transformer I need?
> > Or how to analyse the existing one?
> > All help gratefully received..
> >
>

Re: Maestro Rhythm Jester - Conversion to UK power supply?

2011-06-10 by nervejam

Hi Paul,
Thanks for the offer, but I have a step-down transformer on the way from connevans for 10gbp inc p&p.
Power it up, and get a meter on it, no bother.  
I'll update this thread when I've had a look.

Paul


--- In vintagesynthrepair@yahoogroups.com, "Paul" <paul.read@...> wrote:
Show quoted textHide quoted text
>
> Hi Paul,
> 
> Where abouts are you in the UK, I might be able to help if you are unsure of opening it up and having a look.
> I have a"Variac" a variable transformer so it can be powered up and measured.
> 
> Cheers
> 
> Paul
>

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