In article ,
Adrian C wrote:
Dave Plowman (News) wrote:
I've fitted a rather nice steering wheel to the old car which comes with a
horn push in the middle. At the moment the horn is activated by pushing
the indicator stalk.


No need to go Radio. Align a couple of coils axially with each other so
that they couple at all positions of the steering wheel. Drive the fixed
coil from an oscillator (555 timer?), and wire the horn button across
the steering wheel coil, maybe with a resistor load. Detect the current
draw from the oscillator to drive a relay for the horn.

Interesting idea but might be difficult to arrange in practice.

--
*Succeed, in spite of management *

Dave Plowman London SW
To e-mail, change noise into sound.