Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

' (."uh)MODULATION BY ELECTRON BEAMS 489equated.This gives the following infinite set of equations:V•VA° lM= - /xSJV (64a)V vAi„ 111 + ]n= - /xS/(1)]n + i>eM grad ln a) (64b)V 2 0,„" =€(65a)V 2^i„ (1) =S„ (1)(65b)eEquations (64a) and (65a) have no bearing on the problem ofdetermining the resonant frequencies, since the quantities involvedare independent of the time.Since S/,,/ 11 is small, we may make use of a standard perturbationmethod for determining A ln and a. To do this we writeA ln{l}= A 0H + 85 lB (o, „, r) + -{—Jltt»> (