Ectron 560H, Инструкция по эксплуатации

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Model 560H Calibration and Maintenance
3. Adjust the function generator to higher fre-
quencies. The peak-to-peak amplitude should
remain within ±30% of nominal over the
specified bandwidth of the amplifier.
NOISE (FIGURE 7-3)
NOTE: Use caution when wiring the input circuit
for this test to avoid introducing additional noise.
1. Substitute an rms meter with an RC filter of
the appropriate cut-off frequency connected
in series for the oscilloscope.
2. Remove the oscillator from the test fixture in
Figure 7-3.
3. Set S1 to 2.
4. Connect the jumper as shown in the figure.
5. Adjust the amplifier to a gain of 1.
6. Record the rms RTO noise.
7. Adjust the amplifier to a gain of 1000.
8. Record the rms RTI noise.
BENCH TESTING
The Model 560H operates from an isolated power
supply that provides ±16 V regulated for the
amplifier.
However, all amplifiers can be tested using an
extender board as listed in Section VIII, or they
can be bench tested using a ±16 V supply. A ±15 V
supply can be used but the maximum CMV is
reduced to ±7.5 V and the output amplitude and
drive capability will be degraded somewhat.
7-5