[Robert Bergeron]

Thanks Tony , Chris & Jesse . We have collectively determined it’s a Lineman’s tool called a ringer . It is basicly a magneto to produce current . I introduced two wires in the side holes and turned the crank . Ouch ! I was shocked . That’s what gave me the idea of using the volmeter . 4-5 Volts . I will try a few different plugs next week as Jesse suggests it may be a common plug from another piece of kit like a standard or a phone . So the ringer rings the bell on a field phone connected down the line to find and correct a fault . What other application could this be used for ? This is just my two Bob’s but we have at least 4 .