Date   : Mon, 14 Sep 2009 23:29:36 +0100
From   : pete@... (Pete Turnbull)
Subject: Mouldy beebs!

On 14/09/2009 22:54, Philip Pemberton wrote:
> Pete Turnbull wrote:
>> more careful drying -- labels, some types of relays switches or 
>> potentiometers (not a problem on a Beeb, though),
> 
> Ah -- that's a point. I forgot about the cassette relay. In all the BBCs 
> I've had open, it's been a standard relay with a two-piece snap-together 
> plastic casing.

I think you're referring to the type with a clear cover.  The more 
common type I've seen is the blue plastic type which is sealed.

> As for the rest of the motherboard, I don't have a schematic handy, but 
> I seem to recall the Master and B are pretty much devoid of any form of 
> potentiometer.

Except for the small preset (often yellow) VR1, the volume control (near 
IC19 on a Beeb) -- but those should be OK.

-- 
Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York