MIL-P-83927B(USAF)
input frequency shall be included. No damage shall result from a continuous
short circuit between the low voltage regulated output of this supply and
the high voltage regulated output of the PS-1037-3C with the low voltage
power supply connected to its normal load.
3.3.3.3 Firing Interlock Circuit.
a. Firing Interlock Circuit of Types PP-2401B/A, PP-2401C/A, PP-2401D/A
and PP-4286/A.
(1) The resonance frequency of the tuned circuit shall be 6100 Hz ± 100
Hz.
(2) Relay K3 Shall close when an MS voltage of not less than 11 nor
greater than 25 volts at the resonance frequency is applied between J4 - K
and J4 - H.
(3) Relay K3 shall not pull in when an MS voltage of less than 80
volts at frequency of 4000 Hz + 50 Hz is applied between J4 - K and J4 -
H.
(4) The maximum voltage applied between J4 - T and J4-H necessary to
activate relay K3 shall be 18 volts DC.
(5) All of the above shall apply Over the temperature range of -65°C
to 100°C.
b. Firing Interlock Circuit of Type PP-4506/A.
(1) The resonance frequency of the tuned circuit shall be 6100 Hz ± 100
Hz.
(2) Relay K3 shall close when an RM3 voltage of not less than 11 volts
nor greater than 25 volts at the resonance frequency is applied between P5-
D and P5 - E.
(3) Relay K3 shall not pull in when an RMS voltage of less than 80
volts at a frequency of 4000 Hz ± 50 Hz is applied between P5 - D and P5-
E.
(4) The maximum voltage applied between P5 - L and P5 - E necessary to
activate relay K3 shall be 18 volts DC.
(5) All of the above shall apply over the temperature range of -65°C
± 100°C.
c. Firing Interlock Circuit of Type PP-4285/A.
(1) The resonance frequency of the tuned circuit shall be 6100 Hz +
100 Hz.
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