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Author Topic: motor wiring on R-3 soundhead James Falloon Film Handler Posts: 72 From: Wigram, Christchurch, New Zealand Registered: Oct 2003 posted 06-02-2007 10:24 PM                     I'm trying to wire up a motor on a century r-3 soundhead. All the wires were cut when the projector was uninstalled. I would have assumed the slow start resistor was wired in series with the starter coils but the motor only has two terminals, does the resistor just go in series with the motor? Seems an odd way of doing it. rather dodgy looking resistor (cover removed) nameplate on motor two terminals on motor Thanks for your help James  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 06-03-2007 07:55 AM                        Judging from your picture, the resistor goes in series with the motor. With only 2 connection points, there can be no other way. Besides that coil looks similar in power & resistance to the 200 watt 5 ohm resistor we once used (in changeover days). Louis  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-03-2007 03:06 PM                     normaly the hoovers up here were connected with a 40 ohm 100 watt in serries with the start winding other motors I usually put a 200watt 1.5ohm in series with the entire motor  |  IP: Logged James Falloon Film Handler Posts: 72 From: Wigram, Christchurch, New Zealand Registered: Oct 2003 posted 06-04-2007 11:03 PM                     Ok Thanks guys, I'll wire it up in series in the next couple of days and let you know how I get on.  |  IP: Logged

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