1. ACA/ASC RM-130 (P-20) 2. STH-10 and a Model 5/7 clone, I'm thinking the HOR version 3. Darley STH-10 clone. Same motor and rotor/stator, but mounted with the motor to the ground. Enclosed by a proprietary, very odd housing. 4. I'd also like to know. There was a topic on the old board about this, ...