Got this a few weeks back:
It's a Heathkit #RP 1065.
Now I don't wish to sound like a braggart, but I think over the years I've gotten fairly decent at getting my locos fine-tuned and running well. Have been using Troller Autopulse units and an MRC "ControlMaster VI", and everything has been pretty good...or so I thought.
This thing is remarkable in its ability to make everything run amazingly well. From 3-pole Rivarossi locos (both HO and 0) to anything with an open-frame DC-71 to engines with Pittman can motors (also HO and 0). Low speed is terrific, the "momentum" feature is actually something that can be used in practice, unlike other packs that offer this option. Has multiple controls for pulse, but I'm finding it's just not needed. And because it started as a kit, it's very "user friendly" as far as being able to go inside and make circuit adjustments as needed/wanted.
Am still learning all it can do; it's big, heavy, think of it as kind of a DC equivalent to a ZW... 
Happy Fourth, everyone.
Mark in Oregon
