[sdiy] Capacitor identification

Jean-Pierre Desrochers jpdesroc at oricom.ca
Sat Feb 2 15:28:16 CET 2008

This is indeed a 47nF (0.047uF) rated at 125vac.

The purpose of it is to cut down EMI's and any
noise on the power line.
Just put back a cap with the same 0.047uF value
but with a 250vac minimum voltage rating.
X2 type caps (flame proof type) work best for this purpose
but are not necessary.
This should do the trick along with the new transformer.
(Be sure the new transformer as the same secondary voltage value +-10%)
Hope this helps.

----- Original Message ----- 
From: "James Dunn" <james at 4thharmonic.com>
To: "synth-diy at dropmix. xs4all. nl" <Synth-diy at synth-diy.org>
Sent: Saturday, February 02, 2008 8:40 AM
Subject: [sdiy] Capacitor identification

> Hi list,
> I wonder if someone could help me identify this capacitor?
> http://www.flickr.com/photos/59196407@N00/2235999069/
> I think it might be 47nf?
> Also, it appears to have a max voltage of 125VAC - is this correct?
> It has been pulled from a Techincs SY-1010's power supply where it was 
> connected in parallel with the AC input (110VAC) and I want replace the 
> transformer with a UK one (230VAC). What is the purpose of this cap 
> anyway?
> thanks
> James
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