A Variable Coincidence Unit Hasl Type TL-9

The variable coincidence gate is a multifunction logic unit designed for use with the HASL quarter chassis line of nuclear instrumentation. It provides a flexible unit which is applicable to several of the techniques used for counting radioactive events. The circuit can be used for prompt, delayed and decay coincidence, anticoincidence, and pulse height window measurements. It also operates as a signal generator of paired pulses and of delayed pulses. The unit is 3 1/2" high by 9 1/2" wide and 6" deep.