TM 9-6695-274-14
Figure 1-72. John Fluke, Model 845AR, Null Detector.
John Fluke, Model 845AR, Null Detector (fig. 1-72) allows measurement of dc voltages from I 1V to 1000 V dc in 19
ranges. When used as a null detector on the 100 mV range and below, the input impedance is 10 MQ. A linear recorder
output allows the instrument to be used for production testing and also as a dc amplifier with a maximum gain of 120 dB.
Figure 1-73. Kepco, Model HB 525M 20480, Power Supply.
Kepco, Model HB 525M 20480, Power Supply (fig. 1-73) is a wide range, precision regulated unit which incorporates a
hybrid regulator, high resolution voltage control, and is fully programmable up to 525 V. It has two auxiliary 6.5 V, 10 A
filament windings connection available at the rear barrier strips. These two auxiliary outputs can be used separately, in
parallel or in series operation.
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