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Magnetic Tape Controlleddelay Devices
Controlleddelay Devices Using Storage
accuracy adding device amplifier A2 amplitude modulation amplitude-frequency characteristic approximation unit armature voltage brushes capacitance capacitor CQ carrier frequency cathode follower cent error chain of storage charged Circuit diagram circuit of Pig.22 commutator constant contact sets control unit control voltage Uc d.c. operational amplifier delay device demodulator device with sequential diode detector discharge disk electronic amplifier ensures feedback circuit frequency band frequency modulator input signal voltage input voltage linear increment magnetic recording magnitude modulation factor multivibrator number of storage obtained odd cells operational d.c. amplifier oscillations output element output impedance output voltage curve parameters pentode percentage modulation photo-cell PCj piecewise-linear approximation Pigure playback head playback unit pulse-code modulation quency range recording head recording unit relay P2 reproduced sampling unit saw-tooth voltage sequential transmission step function step-by-step switch storage capacitors storage unit switching rate tacho-generator tage tion transient transfer function values valve variation varying