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| MIL-P-46320C(MU)
meet the following requirements of this spec-
compatible to that of a single 1.5 volt (series
ification after exposure to shock impacts of
C) type BA42 dry cell battery.
25 gravitational units (G's) applied six
times parallel with and six times perpen-
3.8.4 Output polarity. The power supply
dicular to the power supply's longitudinal
metallic housing shall be considered elec-
axis at standard ambient temperature.
trical ground and shall be positive with
respect to its negative high voltage output
terminal.
3.7.4 Mechanical vibration. The power
supply at standard ambient temperatures
3.8.5 Short-circuit protection. The power
shall not be damaged when subjected to a
supply shall not be damaged or adversely
simple harmonic motion having an ampli-
affected as a result of a direct short circuit
tude of 0.03 inch (0.06 inch maximum ex-
applied for at least one minute during opera-
cursion). The frequency shall be varied
uniformly between the limits of 10 and 55
tion between the negative high voltage out-
put terminal and housing.
cycles per second (cps), and return to 10
cps, and shall be traversed in approximately
one minute, This motion sholl be applied for
3.8.6 Intermittent operation. The power
a period of 10 minutes in each of three
supply shall exhibit no evidence of spasmodic
mutually perpendicular directions (total of
or interrmittent operation when meeting the
30 minutes). Subsequent to vibration the
requirements of 3.9.
power supply shall meet the following re-
quirements of this specification.
3.9 Power supply performance; opera-
tional.
3.7.5 Hermetic sealing. When thermally
stabilized at an ambient temperature not
3.9.1 Input voltage. Unless otherwise
in excess of 100 degrees Fahrenheit, the
specified' herein, the power supply shall meet
power supply, shall exhibit no evidence `of
the applicable operational requirements of
compound or air leakage, when immersed
this specification when operated from a
(for no less than two minutes, and no more
direct current (dc) low impedance source of
1.52 volts (see 6.5).
than three minutes) in a bath of water
maintained at a minimum ambient tem-
perature of plus 180 degrees Fahrenheit.
3.9.2 Input current. The input current in
dc milliamperes (ma) drawn by the power
3.8 Power supply performance; electrical.
supply shall not exceed the values specified
in tables I to III inclusive when delivering
the prescribed output voltages at the in-
3.8.1 Input polarity. The power supply
shall meet the requirements of 3.9 when its
dicated ambient temperatures.
metallic housing is polarized negative and
considered as electrical ground with respec:
3.9.3 Output characteristics. The power
to its positive input terminal.
supply shall demonstrate the following out-
put characteristics at the ambient tempera-
tures specified,
3.8.2 Input immunity. The power supply
shall not be damaged by application of its
rated input operating voltage in reverse
3.9.3.1 Output voltage regulation. The
polarity.
power supply shall deliver a dc output
voltage, within the prescribed limits under
the four load current conditions specified in
3.8.3 Input impedance. The power supply
Tables I to III inclusive at the indicated
shall operate from a direct current (dc)
ambient temperatures.
power source whose output impedance is
3
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