MIL-PRF-1/1011E
TABLE I. Testing and inspection - Continued.
1/
For instantaneous starting applications where anode voltage is applied instantaneously, the maximum permissible epy is 7 kv.
In pulsed operation, the peak inverse voltage, exclusive of a spike of 0.05 µs maximum duration, shall not exceed 2.5 kv during the
2/
first 25 µs after the anode pulse.
Driver pulse, measured at tube socket with thyratron grid disconnected; egy = 175 v minimum; time of rise = 0.5 µs maximum; grid
3/
pulse duration = 2 µs minimum. Impedance of drive circuit = 1,500-ohms maximum.
4/
Drive pulse measured at tube socket with thyratron grid disconnected.
During the interval between 2 minutes and 7 minutes of the anode delay time test, the change in anode delay time drift (Ćtad)
5/
relative to the tad value observed on the anode delay time test shall not exceed specified value.
The anode circuit constants shall be chosen so that epy = 8.0 kv under resonant charging conditions; dik/dt = 1,200 a/µs
6/
minimum; ib = 83 a; tp = 0.25 µs; prr = 4,500; inverse voltage due to mismatch = 400 volts maximum. The grid pulse
characteristics shall be tp = 2.0 µs maximum; tr = 0.5 µs minimum; driver impedance = 1,500 ohms minimum.
7/
The anode circuit constants shall be chosen so that epy = 8.0 kv under resonant charging conditions; ib = 83 a minimum; dik/dt =
1,200 a/µs minimum; tp = 0.25 µs; prr = 4,500 inverse voltage due to mismatch = 1.9 kv minimum. The grid pulse characteristics
shall be tp = 2.0 µs maximum; tr = 0.5 µs minimum; driver impedance = 1,500 ohms minimum.
8/
Any tube failing to start within three attempts will be considered a failure.
The anode circuit constants shall be chosen so that epy = 8.0 kv under resonant charging conditions: dik/dt = 1,000 a/µs
9/
minimum; ib = 90 a; tp = 0.50 µs minimum; prr = 3,000. The grid pulse characteristics shall be tp = 2.0 µs maximum;
tr =
0.50 µs minimum; driver impedance = 1,500 ohms minimum.
10/
There shall be no pronounced resonance over the range from 10 to 50 Hz.
11/
Acceptance is based upon accept on zero (c = 0) sampling plans, in accordance with Table III of MIL-PRF-1.
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