"Harry Bloomfield" wrote in message
k...


Lacking the heat of convection, I suppose the modern way would be to drive
them via a synchronous small clock motor. As this is a modification and
has to work with a flow of air - how about a small mains powered computer
fan to supply the essential flow of air?

I think those small fans work on 5V or 12V at the most.
Perhaps a sterling engine design might work.


--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk