MIL-PRF-1/1634E
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* Unit
* Inspection
* Notes
* Method
Conditions
* Symbol
Limits
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Min *
Max
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* 17
*Conformance
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*inspection, part 1
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*Electrode current
* 1256
* Ic2
-7.0 *
+3.0
* mA dc
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* (screen)
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*Electrode voltage
* 1261
* Ec1
-11.5 *
-18.0 * V dc
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* (grid)
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-25.0 * µA dc
*Total grid current
* 4
* 1266
*Eb = 2,500 V dc;
* Ic1
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*Ib = 140 mA dc
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-25.0 * µA dc
*Primary grid emission
* 1266
*Pg1 = 0.5 W; t = 15; anode
* Isg1
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* (control)
* and screen grid floating
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-250.0 * µA dc
*Primary grid emission
* 1266
*Ec1 = 0; t = 15;
* Isg2
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*Pg2 = 8.0 W; anode floating
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*Heater current
* 1301
*8321
* If
2.2 *
3.6
* A ac
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*8321A
2.0 *
3.4
* A ac
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*8322
0.50 *
0.81
* A ac
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*Pulsing emission (1)
* 5,6
* 1231
*etd = eb = ec2 = ec1 = 400 V;
* Is
30.0 *
*a
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*8321: Ef = 5.4 V ac
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*8322: Ef = 23.8 V ac
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*etd = eb = ec2 = ec1 = 400 V;
20.0 *
*a
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*8321A: Ef = 5.7 V ac
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*Pulsing emission (2)
* 5,6
* 1231
*eb = ec2 = ec1
* etd
400
*v
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* = etd/is = 30 a for 8321
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* and 8322; For 8321A,
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* eb = ec2 = ec1
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* = etd/is = 20 a
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*Current division
* 1372
*Eb = 500 V dc;
* egk
0.0
*v
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* (long pulse)
*Ec2 = 400 V dc;
* ic2
150
* mA
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*Ec1 = -100 V dc;
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*prr = 11 ±1 pps;
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*tp = 4,500 µs (min);
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*egk/ib = 850 mA
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*Interelement leakage
* 1366
*Ef = 0 (30 minutes, minimum);
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* resistance, cold
*Rs = 2.5 Meg;
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* E = 100 V dc; g1 neg
* Rg1k
50
* Meg
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* E = 500 V dc; g1 neg
* Rg1g2
50
* Meg
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* E = 500 V dc; g2 neg
* Rg2p
50
* Meg
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See footnotes at end of table.
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