[BBC-Micro] ADFS and DFS in a beeb

[Jules Richardson]

Andrew Benham wrote:
> I remembered on the way home tonight that Watford did a 1770 disk
> upgrade which wasn't compatible with the Acorn one 

uh-oh! :-)

> Does your 1772 adaptor board have any markings on it ?  I've come
> across Acorn, Solidisk, and Watford 1770 disk upgrades - and there
> may be more.

Yep, it is a Watford one -  a "DDB 3", marked as "BBC Micro iss 1". Chip dates 
seem pretty late though; the oldest one is week 18 of 1989.

cheers

Jules