Adding to the PLD-CH chassis-mount series linear laser diode drivers is a 12.5A model, the PLD12.5K-CH. Like other members of the series, it offers single-supply operation from a +5 Vdc supply and, for applications requiring a higher forward voltage, a separate laser diode power supply input allows for voltages up to +28 Vdc. Safety features include a slow start circuit, mechanical shorting relay, and active current limit. WAVELENGTH ELECTRONICS INC., Bozeman, MT. (406) 587-4910.