Date   : Sat, 15 May 2004 15:17:28 +1200
From   : Michael Foot <mjfoot@...>
Subject: Re: BBC B PSU part

In message <1084531360.31340.13.camel@...>
          Jules Richardson <julesrichardsonuk@...> wrote:

> On Fri, 2004-05-14 at 06:45, Michael Foot wrote:
> > Hello,
> > 
> > I have a BBC Model B power supply that has a cracked and 
> > smoked capacitor. It's in location C1 between the fuse 
> > and R1. It is a rectangular block with 0,01 uF @ X printed 
> > on it.

I had a look at the Dick Smith online catalog and can't find this part at
all. With Dick Smiths I find it not even worth the effort to walk in there
and ask for advice because the sales staff are useless. Unless I know what
I need I won't go there.
There is also a Jaycar (http://www.jaycar.co.nz) store close by that does
appear to have this type of capacitor. I'm still confused over which one to get.
I'll also replace C2 (0.1 uF @ X) while I'm at it. Jaycar have the following
which look close.

RG5250 0.01uF Mains 250VAC Metallised Polypropylene Capacitor
RG5254 0.1uF Mains 250VAC Metallised Polypropylene Capacitor

RG5230 250V AC Mains - Metallised Polypropylene Capacitors - X2 10nF
RG5236 250V AC Mains - Metallised Polypropylene Capacitors - X2 100N 

Would any of these do the trick?

> Part no. 206-7702 looks to be what you need from RS though. 
> I've looked at the RS website, and I would suggest part number 311-1024
would be a replacement.

What is difference between X1 and X2 components and can I use either? Part
206-7702 is rated 300V. Does this mean it can be used in circuits up to this
voltage?

Thanks,

Mike.

-- 
Michael Foot <mjfoot(at)paradise(dot)net(dot)nz> *
http://homepages.paradise.net.nz/mjfoot/
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