UG-643/U, UG-564/U, or UG-637/U). Selection of the
(2) If the test signal is injected in the vicinity of
various connectors and their points of actual connection
exposed. high-voltage leads, or if there is any
to the unit under test depends on the type of equipment
chance of shorting out an automatic volume
being tested.
control (ave) voltage, use a series blocking
capacitor.
(1) Use the shielded rf cable for all connections an(l
15. Service Upon Receipt of Used or Reconditioned.
extensions. If an alligator clip connection is
Equipment.
required at the unit under test, connect one of
the test adapters (with alligator clips) at tile
a. If use equipment is received for service, check
output end of tile rf cable. One of the test
for tags or other sources of information, regarding the
adapters supplied with the signal generator has
condition of the equipment.
an internal 51-ohm resistor across the clip leads.
b. When the condition is doubtful, the equipment
This serves Is a load resistor in applying the
should be carefully unpacked (par. 12) and subjected to
the equipment performance check (pair. 39).
circuit. Use the unterminated adapter when
c. A thoroughly reconditioned signal generator
connecting the output to a 50-ohm load.
should be treated as a new piece of equipment.
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