Performance Check/Calibration—Type 422 AC-DC
4. Variable autotransformer.1 Must be capable of
supplying about 75 volt-amperes over a range of 95 to 137
volts (190 to 274 volts for 230-volt nominal line). (If
autotransformer does not have an AC voltmeter to indicate
output voltage, monitor the output with an AC voltmeter
with range of at least 137 or 274 volts, RMS.) For example.
General Radio W10MT3A Metered Variac Autotransformer
(use General Radio W20HMT3A for 230-volt nominal line).
5. DC volt-ammeter (VOM)J Minimum sensitivity,
20,000 ohms/volt; range, 0 to 1500 volts and 0 to 500
milliamperes; accuracy, checked to within 1% at —1385 and
at the currents to be measured. For example, Triplett
Model 630-NA.
6. Time-mark generator. Marker outputs, 50 nanosec
onds to 0.5 second; marker accuracy, within 0.1%.
Tektronix Type 184 Time-Mark Generator recommended.
7. Standard amplitude calibrator. Amplitude accuracy,
within 0.25%; signal amplitude, 20 millivolts to 100 volts;
output signal, one-kilohertz square wave. Tektronix
calibration fixture 067-0502-00 recommended.
8. Square-wave generator. Must have the following
output capabilities (may be obtained from separate
generators): 120 volts amplitude at one and 10 kilohertz
repetition rate with a 120 nanosecond or less risetime; 500
millivolts into 50 ohms at 100 kilohertz repetition rate with
a five nanosecond risetime. Tektronix Type 106
Square-Wave Generator recommended (meets both output
requirements).
9. High-frequency constant-amplitude sine-wave gener
ator. Frequency, 350 kilohertz to above 15 megahertz;
reference frequency, 50 kilohertz; output amplitude,
variable from five millivolts to five volts peak to peak into
50 ohms; amplitude accuracy, output amplitude constant
within 3% of reference at 50 kilohertz as output frequency
changes. Tektronix Type 191 Constant Amplitude Signal
Generator recommended.
10. Low-frequency constant-amplitude sine-wave gener
ator. Frequency, two hertz to one megahertz; output
amplitude, variable from 40 millivolts to five volts peak to
peak; amplitude accuracy, output amplitude constant
within 3% of reference at one kilohertz as output frequency
changes. For example. General Radio Model 1310-A
Oscillator.
Accessories
11. DC power cord.1 Fits DC portion of AC-DC Power
Supply power receptacle. Tektronix Part No. 161-0016-01
(supplied accessory).
12. IX probe. Tektronix P6011 Probe recommended.
1 Not required for performance check only.
13. Patch cord (two). Length, 18 inches; connectors,
dual banana plug-jack. Tektronix Part No. 012-0031-00.
14. AC power cord. Fits AC portion of AC-DC Power
Supply power receptacle. Tektronix Part No. 161-0015-01.
15. 50-ohm resistor. 10 watt, 5%. Tektronix Part No.
308-0362-00.
16. 680-ohm resistor. Two watt, 5%. Tektronix Part
No. 305-0681-00.
17. Jumper lead. Length, six inches; connectors,
alligator clips both ends. Not available from Tektronix.
18. Cable. Impedance, 50 ohms; type, RG-58/U; length,
42 inches; connectors, BNC. Tektronix Part No.
012-0057-01.
19. 10X probe for test oscilloscope.1 Tektronix P6012
Probe recommended.
20. Dual input coupler. Matched signal transfer to each
input. Tektronix calibration fixture 067-0525-00.
21. Adapter. Adapts GR874 connector to BNC male
connector. Tektronix Part No. 017-0063-00.
22. Cable. Impedance, 50 ohms; type, RG-58/U; length,
18 inches; connectors, BNC. Tektronix Part No.
012-0076-00.
23. 10X attenuator (two). Impedance, 50 ohms;
accuracy, ±3%; connectors, BNC. Tektronix Part No.
011-0059-00.
24. Termination. Impedance, 50 ohms; accuracy, ±3%;
connectors, BNC. Tektronix Part No. 011-0049-00.
25. Input RC normalizer. Time constant, one megohm X
33 pF; attenuation, 2X; connectors, BNC. Tektronix
calibration fixture 067-0540-00.
26. Adapter. Adapts BNC male connector to dual
binding post, Pomona #1269. Tektronix Part No.
103-0090-00.
Adjustment Tools
27. Screwdriver. Three-inch shaft, 3/32-inch bit for
slotted screws. Tektronix Part No. 003-0192-00.
28. Low-capacitance screwdriver.1 1 1/2-inch shaft.
Tektronix Part No. 003-0000-00.
29. Tuning tool.1 Handle and insert for 5/64-inch (ID)
hex cores. Tektronix Part Nos. 003-0307-00 and
003-0310-00.
5-2
EE
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