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Section V
Table 5-1
Table 5-1. Recommended Test Equipment
Model
722A
Instrument Type
Required Characteristics
Use
Instrument Recommended
DC Voltmeter
Accuracy of ± 1%
Measure voltages
Analog,
rfiJ
Model
412A/
AR
Digital,
1j; Model 405A/B/C
AC Voltmeter
Accuracy of ±3%
Measure ripple
~
Model403A
Floating input
Battery operated
Oscilloscope
5 mv-cm sensitivity
Measure ripple peaks
~
Model 130B, 150A with
Model 151B
~
Model 160B/1 70A with
Model 162D
Variable
Monitor meter 1 volt res-
Change ac input voltage
Superior type UC1M
Transformer
olution and ± 1% accuracy
Low-Heat
23-1/2 watt element
Solder printed circuit boards
Soldering Iron
( connect iron to 75 volt line)
Ungar Model 776
Soldering Iron Handle
Ungar Model 535
Heater Element
Ungar Model PL333
Soldering Iron Tip
Stable Voltage
oise and ripple less than
Reference voltage to test
Another
~
Model 722A;
Source
250 microvolt at 60 volts
regulation
45 volt and 7 volt battery
connected in series
Load
25 ohms at 150 watts
Load for measuring ripple,
Any resistor or combination
regulation, etc.
of resistors of suitable value
(may use wirewound resistors,
supply not affected by in-
ductive load)
Precision
1 ohm ± 1%, 5 watt resistor
Measure current with
~
stock number 0811-0040
Resistor
voltmeter
5-0
01155-1
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