MIL-PRF-1/1729E
TABLE I. Testing and inspection - Continued.
17/
This type will replace the following:
Type or part number
8538A and Y-564
ML8538 and Hazeltine P/N 910633
8933 (EIMAC)
18/
The torque test shall be performed as follows:
a.
A torque of 15 inch-pounds shall be applied at right angles to the tube axis between the anode and cathode, without
shock.
b.
A torque of 20 inch-pounds shall be applied at right angles to the tube axis between the anode and grid, without
shock.
19/
Compatibility testing is required in addition to the requirements stated herein. A sample of 10 tubes shall be subjected to
compatibility testing in the Receiver Transmitter RT-868A/APX-76(V), or in RT-1026/TPX-46(V), where it shall be
demonstrated that pulse train droop does not exceed 1.0 dB when used with a pulse train of 37 pulses 0.5 µs wide spaced at
2 µs. Droop shall be defined as that power difference between pulses with maximum power and minimum power
respectively. There shall be no evidence of a sudden amplitude change or "step" during the pulse train.
20/
Initial qualification inspection only.
5
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