Direct Support, General Support and Depot Maintenance Manual, Including Repair Parts and Special Tool Lists: Radar Set AN/PPS-4A (NSN-5840-00-168-1566).
Headquarters, Department of the Army, 1971 - Radar
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adjustment afc system afc unit amplifier unit attenuator audio filter audio unit Automatic Frequency Control binding head screws capacitor category of maintenance center section circuit board clamp coaxial cable Connect connector control panel diode directional coupler emitter follower EXTENSION METERS meter fasten figure four trunk-type latches frequency headsets higher category hybrid waveguide assembly inductor input jack klystron knurled lockwashers magnetron V901 mixer multimeter oscillator oscilloscope output plug position potentiometer power converter system power converter unit POWER switch procedure in paragraph procedures given radar set radome RANGE CALIBRATION RANGE EXTENSION METERS range gate RANGE METERS indicator range unit rangemark ranging system receiver-transmitter receiving system Refer the defective remove and replace repair patchcord Repeat the procedure replace if necessary response curve Set the POWER STROBE switch strobe unit switch at TRANSMIT system troubleshooting chart test cable Test Equipment test point transistor transistor tester transmitter unit transmitting system unit fig volts waveform
Page 2-56 - As discussed in 6 and c above, energy is supplied from a rectifier in pulses. The fluctuations can be reduced considerably if some energy can be stored in a capacitor while the rectifier is putting out its pulse and allowed to discharge from the capacitor between pulses.
Page 2-12 - The transition points are the peak and valley point. To the left 'of the peak point is the cutoff region of high positive resistance between the emitter and contact B,.