[sdiy] Capacitor identification

[Mike]

> 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?
>
You're correct about the value and the voltage. It's to help keep mains
borne interference out of the amp. In Europe you will need to fit an 'X1'
rated capacitor, (this is a special rating that is good for 230V AC,  is
'self healing', and will handle up to 4KV spikes). See
http://my.execpc.com/~endlr/line-filter.html

The standard fitting in Europe is usually 100nF. I got a large bag of them
in the last batch of scrap I bought. If you want a couple for postage cost,
drop me an email.

||\/||ike