Date   : Fri, 19 May 2006 14:40:15 +0100
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: RAF Beeb?

Philip Pemberton wrote:
> In message <1147956182705.kris@...>
>           "Kris Adcock" <kris@...> wrote:
> 
>> Are those 'luggable' cases available in a DIY-enthusiasts form, from the
>> likes of Farnell or RS?
> 
> Not to my knowledge, but you could knock something together fairly easily out
> of the raw components.

I though RS sold all the bits for Vero cases (as used on the System machines, 
or RM 380Z crates etc.)

I don't think I'd fancy making a luggable machine out of pure metal though; 
plastic skins would make far more sense.

> then bolt
> on some hardware to convert the key pulses into a serial link and back again.

Lots of early luggables didn't even bother with that - just a honking great 
parallel cable between keyboard and main unit.

> As far as batteries go, I'd be tempted to use a lithium ion laptop pack

I *think* I asked on here before, but maybe not... anyone ever worked out what 
  beeb power consumption would be if parts were replaced with low-power 
equivalents where possible?

I suppose RAM is one of the biggest current draws and there's not much you can 
do about that whilst keeping the pinouts the same...

Related question: how many potatoes would be needed to run a mini-B? (possible 
fun museum display!)

cheers

Jules