I only have two standard gauge locos at the moment - a GWR 55xx prairie which is so far just a rolling chassis and also a Heljan Class 42 Warship. Both of these are still DC but will be converted to DCC in due course. The Warship takes quite a lot of power - and the little old Gauge Master DC controller borrowed from my son's trainset would frequently cut out.
I didn't want to splash out on a high-power DC controller, so though I'd try one of the cheap PWM motor controllers that are now readily available - I think driven by the rise in e-bikes etc. I bought this one which was a 20A 25KHZ PWM DC Motor Controller which cost a mere £17.99 from eBay:
I hooked it up to a 16v DC old laptop power supply that I also use for my NCE ProCab and tried it out. It works a treat. There doesn't seem to be any noticeable buzz etc from the locos and I think it will certainly serve well while I'm completing the SG.
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