Mixing Digital and Analog Supplies

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Mixing Digital and Analog Supplies - Connection of 6021 Digital supply and Analog Overhead supply

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PMPeter		#1 Posted : 11 December 2013 18:12:19(UTC) Retweet
Joined: 04/04/2013(UTC) Posts: 1,275 Location: Port Moody, BC		I am currently powering the track for my digital locomotives through a 6021 system and plan on powering the catenary for the time being using an old analog blue transformer control. Obviously since the catenary only has one B connection I assume that I have to tie the O (brown wire) connection together for the 2 systems. Is that going to cause some weird electronic disturbances in the O ground wire that could cause unexpected operation in either the digital or analog mode? Ultimately when I have converted my electrical locomotives to digital I plan on feeding the catenary through a digital booster supply and this concern will disappear. Comments or suggestions? Thanks Peter


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H0		#2 Posted : 11 December 2013 18:23:34(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,267 Location: DE-NW		This has been discussed several times on this forum - and even Märklin Magazine confirms that it can be done. But never ever make a connection between catenary and centre rail, this will most likely kill your digital controller.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS

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PMPeter		#3 Posted : 11 December 2013 19:07:29(UTC) Retweet
Joined: 04/04/2013(UTC) Posts: 1,275 Location: Port Moody, BC		Thanks Tom. Totally agree with your comment of never connecting the centre rail and catenary. I'm sure that would fry the electronics immediately.


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