[Premium-Rx] Computer Interface Racal RA-1794

[Keith Densmore]

Hello All and Happy New Year,
I wonder if anyone on the list would have any knowledge about remoting my 
RA-1794. I am really only  interested in being able to tune the radio with a 
remote knob type vfo rather than the push button scheme it uses internally.
I notice it has an IEE-488 interface and a card installed called a SCORE 
(serial control of Racal Equipment).
The manual mentions an Racal  MA 1113. Anyone able to help??

Thanks. 73,
Keith, ve3ts