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Old 14-04-2018, 09:49 AM   #1
yelrow
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Default These point motor CDUs

hi, Are these actually necessary, for occasional usage. Am wiring up my N gauge point motors. Will i regret not having them. Never used before. john
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Old 14-04-2018, 10:22 AM   #2
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Not necessary, but they help to provide a 'beefy' pulse to the solenoid motors coil they also help stop accidental coil burn out should ever a switch remain On for too long.

If your power supply is capable of providing the current needed and the wiring is of suitable size rthen you don't have to use a CDU. But as only one is normally needed for the whole layout their cost in minimal its worth fitting one IMO.
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Old 14-04-2018, 10:35 AM   #3
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FB, thanks, peco one is not well thought of apparently.
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Old 14-04-2018, 10:43 AM   #4
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Early ones were not very powerful, I believe they have altered the design but I havent seen the later ones. Gaugemaster or BlockSignalling are very good value.
Link to eBay sales
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Old 14-04-2018, 10:56 AM   #5
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You only need one John. Really worth using.
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Old 14-04-2018, 11:02 AM   #6
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Thank you, the block signalling one says for seep motors. Presume its ok for any motor. john
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Old 14-04-2018, 11:39 AM   #7
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Yes it will work solenoid types - All Peco PL10 and PL11, Hornby R8014 and R8243, Seep PM1, PM2 and PM4. Gaugemaster PM10, Hattons PM01 etc.
They do not work and are not suitable for use with stall types of point motors such as Tortoise or DCC Concepts Cobalt.
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