jsl

Very helpful, very quick: I'm impressed. I shall follow the links. It looks a scarily fiddly job: I might go back to my engineering mentor first - though since he does oil-rigs his fingers may not be any better than mine.

I'm new to this forum, so I just hope I'm posting in the right place. I have inherited a Regina Champ, and I'm told it needs a new diaphragm. Spares are reported to be unavailable, but perhaps you experts can offer some hope for this piece of 1960's kit. As far as I can tell, electrical parts are in good order.