CHAPTER 4
FIFTH ECHELON FINAL TESTING
26. Test Facilities
24. Purpose of Final Testing
All tests should be conducted under the fol-
The tests outlined in this chapter are designed
lowing conditions:
to measure the performance capability of a re-
a. Test should be made at room temperature.
paired equipment. Equipment that meets the
b. The equipment should be ON at least 20
minimum standards stated in the tests will fur-
minutes before tests are made.
nish satisfactory operation, equivalent to that
c. Input voltage should be 115 volts 10 per-
of new equipment.
cent, 60 cycles, single phase.
25. Test Equipment Required for
calibrated to an accuracy of 0.5 percent error,
for making ac voltage measurements.
Final Testing
In addition to the test equipment listed in
brated to an accuracy of 1 percent error, for
making dc voltage measurements.
for final testing:
27. Modification Work Orders
The performance standards listed in the tests
Quantity
Item
Variable Transformer CN-16/U . . . . . . . . . . . . . . . .
1
Resistor, 3,000 ohms, 1%, 1 watt . . . . . .
1
orders listed below have been performed. A list-
Resistor, 450,000 ohms, 1%, 1 watt . .
1
ing of current modification work orders will be
Resistor, 550,000 ohms, 1%, 1 watt .
1
found in DA Pam 310-4.
Location of MWO
Remarks
Date
Echelon
MWO No.
Priority
marking
I
None.
4
28 December 1959
Urgent
Near the nomencla-
MWO 11-6625-316-45/1
ture plate on the
front panel.
Equipment modified
4
13 May 1960
Normal
Near the nomencla-
MWO
11-6625-316-45/2
per MWO SIG 11-
ture plate on the
2661-1, 28 Septem-
front panel.
ber 1955, need not
be remodified. Test
Sets TV-2/U and
TV-2A/U pre-
viously modified in
accordance with
MWO 11-266-1,
25 February 1958,
need not be re-
modified.
c. Set the GM-SIGNAL RANGE switch to
28. Bias Voltage Test
(A, fig. 21)
position A and all other switches and controls to
a. Set the GRID switch to position 5.
their neutral or OFF position (vertical position
b. Set the BIAS and PLATE fine control fully
for switches, extreme counterclockwise position
clockwise.
for controls).
34
AGO 1428A
