TB 9-4931-700-50
Figure 9. Distortion check -
equipment setup.
(4) Measure distortion. If distortion is not .06 percent or less, perform b below.
(5) Repeat (4) above for frequencies of 50 and 100 Hz, and 1, 10, 50, and 100 kHz.
If distortion is not .06 percent or less, perform b below.
(6) Repeat technique of (2) through (5) above, using settings and indications
Test Instrument VOLTAGE
Maximum Distortion
RANGE Switch Settings (V)
(Ohms)
Allowed (Percent)
10
221
.060
100
22001
.060
1Replace
decade resistor (A3) with load (A6).
(7) Connect output of the TI (Model 746A) to input of distortion analyzer (A1).
(8) Position TI (Model 745A) controls as listed in (a) through (d) below:
(b) Adjust FREQUENCY control to obtain FREQ scale indication of 1.0.
(c) Press VOLTAGE RANGE 1000V ext. pushbutton.
(d) Set voltage controls to obtain 100.000 V.
(9) Press OUTPUT ON pushbutton (Model 746A).
(10) Measure distortion. Distortion will be .06 percent or less.
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