Found it! Dr Dude, Earthshaker manual and Williams knocker..

[Kenny Taylor]

After the above. Let me know what you have ?

 

[paddythegreek]

Might have a B/W knocker complete with the connector plug if any help

 

[Kenny Taylor]

Many thanks. pm me what you want for it..

 

[Kenny Taylor]

Found a nice knocker courtesy of Dom.. Have decided to use copies of the manuals instead. So will mark this as found

 

[Kenny Taylor]

Thanks Safe Cracker Boy for digging this out of your spares..

Much appreciated