From jim web site:
Triple-control drive corrector with lunar, solar, sidereal, King and user definable rates, Periodic Error Correction (PEC), two-speed R.A. and Dec. correction (0.5x/2x), variable speed focus control, CCD autoguider compatibility, blinking illuminated reticle output, mounting bracket, 12vDC cigarette lighter adapter and 110vAC adapter.
Powers a 110vAC/60Hz synchronous right ascension motor of 10W or less and a low-voltage DC declination motor. 220vAC/50Hz Upgrade for operating from a 220v power source or for controlling a 220v R. A. motor.
Was used on a CB Byers drive mount.
$325 + Shipping