Misc. Aristo Electronics I've listed other items that Aristo makes that are not really R/C devices. 5400 - Power and Controller Small power supply with controller in one unit. 1.8 amps. 0-21v, 22 VA max. Pulse power output ONLY. At 22va, this has to put out under an amp. Throw this away unless you only use it for a small loco going slow. DO NOT use this to test large scale locomotives. This means you James! 5401 - Controller This is a "throttle" that given fixed DC as an input, produces a variable output and also has a reversing switch. The early models handled 3.5 amps, the newer ones will handle 10 amps. Note: the 5401 generates PWM only, no "linear" DC. Remember you need an external DC supply. 5460/55460 - "Ultima" - power supply This is a unregulated DC power supply with basically an AC transformer, a rectifier, and a small filter capacitor. There is also an inaccurate amp meter. The output voltage drops quite a bit according to load, from about 20 volts unloaded to 15-17 volts under full load. It is in a case identical to my old Sears battery charger. The voltage may not be sufficient for all locos, most people standardize on 24 volts and regulated power supplies.