[BBC-Micro] Sideways Ram for BBC B

Andrew Livens Andy at top-banana.com
Wed Oct 13 19:32:56 BST 2010

If you have a fabulous Retroclinic BBC B machine and one of these you
have a CombiRom (Basic, RAMFS, 2 x ADFS) with FRam and 8 SWR in RAM,
great fun :-)

Alternatively, mod the motherboard as per your instructions and have 1
socket with a 27512 and 1 spare "normal" socket :-)

-----Original Message-----
From: bbc-micro-bounces+andy=top-banana.com at lists.cloud9.co.uk
[mailto:bbc-micro-bounces+andy=top-banana.com at lists.cloud9.co.uk] On
Behalf Of Mark Haysman
Sent: Wednesday, October 13, 2010 7:14 PM
To: bbc-micro at lists.cloud9.co.uk
Subject: Re: [BBC-Micro] Sideways Ram for BBC B

> Andrew Livens wrote:
>> In my day 128k/16k was 8 banks of SWR ....... or has inflation run
>> on memory chips ?

As for the 8 SWR board, it's a nice idea, only things I would have
differently is

1) It takes up 2 ROM slots, so you can only have 2 ROMs in a standard 
machine, unless you mod the free sockets for 27256/512s.
.......Or put it in the OS slot and piggy the OS, probably with Basic in
27256 (a'la B+), leaving 8 SWRs and 4 free ROM slots with Basic already
place - does anyone use a machine with Basic?
......Or, make it take up the length of the 4 slots, and put 2 27512 
compatable slots on the board.
2) Why have the huge AA battery pack for a low power CMOS RAM? I'd have
a small coin cell (or rechargable) on the main board.


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