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Types of analog train controls


Ged_K

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Of analog train controllers (beyond the old tried and tested rheostat or variable transformer type) what is the preferred electronic variety, thyristor, transistor, feed-back (Wheatstone-bridge) or the more recent Pulse-Width-Modulation (PWM) types?

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All work and have certain advantages/disadvantages when comparing them. For the old locos I use I have found PWM controllers to be the best coupled to a suitably adequate power supply. Budget Model Railways used to produce a box for around £5 that a standard circuit would just clip into. (Total cost including box, circuit and power supply <£10). I have made a few now and can recommend them but I think BMR have dropped the box from their range and moved onto eBay.

The old H&M are superb and there is nothing wrong with the old Tri-ang controllers, I have a few and still use them with no problems but I would get it tested if you buy a S/H one. I bought an H&M clipper once that sent mains voltage down the track wires and some of the older electronic devices may contain asbestos insulation.

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