The UD2 is a universal DRSSTC driver / controller board originally designed by Steve Ward and is an evolution of this UD1.3. The UD2 accepts a fiber-optic interrupter input and is capable of driving some large GDTs for DRSSTC operation. Its' main feature is an adjustable phase-lead controller. It has had a proven track-record in the field and has been used by many serious hobbyists around the worl...
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