Hi everyone, I am repairing a Melville Clark player with a broken
mainspring in the clockwork roll motor.  I'm looking for someone
that can supply a new spring.  I've tried several companies that
make phonograph mainsprings but no one has spring stock heavy
enough to replicate the original.

The spring is .035" thick, 1.5" wide and 14 feet (168") long.
Any help would be greatly appreciated.

John Sampson