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'Bachmann' Controller ... I Just Thought It Was Faulty & Got Rid Of It
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 Posted: Thu Mar 28th, 2019 07:31 am
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Murray McPhie
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Joined: Sat Feb 9th, 2019
Location: Bendigo , Australia
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Thanks Woodie,

I have an honest old DC controller which seems to provide volts and amps and watts,
and all those other electric things in adequate quantities.

The trains go as fast and in whichever direction my fancy dictates.

This little gizmo just seemed a chance to use an available source to broaden my range, 
on a branch line or something.




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Murray.

I love steam locomotives. Big ones, small ones, real ones, model ones........
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 Posted: Thu Mar 28th, 2019 06:04 pm
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Helmut
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Location: Friedberg, Germany
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@Si

This MRC controller uses the 'autopulse' feature I published some 20 yrs. ago in a forum.
(Although I would suggest a 3k3 resistor, instead of the 10k, for very good crawl behaviour)

When fed by DC, it will just not pulse, but the reversing will not be affected.

No, the Bachmann seemingly uses the positive and negative half-waves for direction,
maybe also a Triac for speed setting,
giving some acceptable, albeit noisy, slow-speed performance for standard iron-core motors.

Do not use it with can-motors, as it may burn them out.




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Freerails > Model Railroad Forums > D.C.C. Electrical & Sound > 'Bachmann' Controller ... I Just Thought It Was Faulty & Got Rid Of It
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