Hi John:
Sorry to hear that. They had a $100 minimum way back when I bought an assortment.
The only important thing in the design is that it be a semi constant torque so that the
end speed of it is omewhat stable enough to allow the trigger to work at the speed it
develops during rotation. Its not a narrow range so I suspect almost any strong enough
spring would do. Im not sure who else sells such things though..
Ill have to research that for future.
Art
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Orange Clockwork Ticker
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