By use of a circuit suggested by G. A. Morton, two methods for stabilizing output pulses from electrostatically focused photomultiplier tubes against supply voltage fluctuations have been investigated. Both are useful with such multipliers as the RCA 5819 and the RCA C7151. The same stabilizing circuit is used in each method, the difference resulting from the point in the dynode system at which the circuit is introduced.
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Sherr et al. (1952) studied this question.