Pico Systems PWM Servo Amplifier
Overview
Brushed DC servo amplifier operating off opto-isolated digital PWM/DIR signals and an analog maximum current limit (set via a resistor typically). It is meant to work with another driver board from Pico Systems, but if you respect some signal requirements, it will work with other systems such as Mesa.
Online Resources
Pico Systems : (b) PWM Servo Amplifier [PWM] - $125.00