[BBC-Micro] Sideways Ram for BBC B

Rob robert at irrelevant.com
Wed Oct 13 14:26:31 BST 2010


On 13 October 2010 14:15, Anders Carlsson <anders.carlsson at sfks.se> wrote:
> Matthew Rose asked:
>
>> Anyone know of any sideways kits still avaible for the BBC Micro?  I'm not
>> diy shy if needs be! :)
>
> A few years ago, I followed the guidelines on this page. Despite I don't
> have much experience in modding, it worked at first attempt so if you're not
> afraid of using a Stanley knife and a bit of soldering, I can recommend it:
>
> http://www.retroclinic.com/acorn/swr/swr.htm


If you don't fancy cutting tracks, this is my method, for use in a
beeb with no other ROM socket expansion -

Take one 62256 RAM chip,
Carefully bend pins 1 and 27 out and upwards, then solder about a foot
of wire to each one.
Plug chip into any available ROM socket.
Run wire from pin 1 to IC77 pin 8, cut to length, strip and solder on.
Run wire from pin 27 to IC76 pin 12, cut to length, strip and solder on.
..and you're done.

I generally put mine into the second-from-right ROM socket, with BASIC
in the rightmost.  This gives me RAM in sockets 14 & 10.

Rob



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