Date   : Fri, 06 Aug 2010 13:47:55 +0100
From   : adsb@... (Andrew Benham)
Subject: schematic wanted

On 06/08/10 05:01, Bob Devries wrote:

> I'm looking for a schematic of the 1770 upgrade for the BBC B. Can someone 
> direct me to the correct URL?

My unofficial diagram is at
   http://www.adsb.co.uk/bbc/disk_controllers/ddfs_v2.jpg

-- 
Andrew Benham         adsb@...       
Southgate, London N14, United Kingdom

The gates in my computer are AND OR and NOT, not "Bill"