TM 9-6695-274-14
Figure 1-42. Wavetek, Model 145, Signal Generator.
Wavetek, Model 145, Signal Generator (fig. 1-42) provides eight different outputs from 0.0001 Hz to 20 MHz. The output is
variable from dc to 15 V peak-to-peak terminated into 50 ohms. The signal generator can be operated in one of three
different modes. The continuous modes provide a continuously generated signal at a selected frequency. In triggered
mode, the generator is quiescent until triggered by an external signal or manual trigger at which time one cycle is
generated at the selected frequency. In gated mode, the signal generator operated the same as in triggered mode except
that the signal generator is an oscillation for duration of gate signal.
Figure 1-43. Krohn-Hite, Model 4100AR, Oscillator.
Krohn-Hite, Model 4100AR, Oscillator (fig. 1-43) provides an ac voltage source from 0 to 5 V rms across 50 ohms. The
frequency range is variable from 10 Hz to 10 MHz. Model 4100AR has a current capability of 2 A. It is used as a driving
source for J<rohn-Hite, Model 7500, Amplifier, and Holt Instruments, Model 250, Ammeter Calibrator.
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