1. All input and output trigger pulses are negative pulses of approximately 50-volts amplitude and 1-microsec duration, derived from low impedance sources such as blocking oscillators.
2. V. W. Hughes and R. M. Walker in Radiation Laboratory Series (McGraw-Hill Book Company, Inc., New York, 1948), Vol. 19, p. 266;
3. E. C. Pollard and J. M. Sturtevant,Microwaves and Radar Electronics(John Wiley and Sons, Inc., New York, 1948), p. 190.
4. E. C. Pollard and J. M. Sturtevant,Microwaves and Radar Electronics(John Wiley and Sons, Inc., New York, 1948).