INCH-POUND
MIL-PRF-1/1773C
15 January 2010
SUPERSEDING
MIL-PRF-1/1773B
26 February 1999
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, MAGNETRON
TYPE DOD-042
This specification is approved for use by all Depart-
ments and Agencies of the Department of Defense.
The requirements for acquiring the electron tube described herein
shall consist of this document and the latest issue of MIL-PRF-1.
Coaxial fixed frequency, 9,375 MHz ± 30 MHz, pulse type, 65-kw rated peak-power output, integral
DESCRIPTION:
permanent magnet, air cooled.
ABSOLUTE RATINGS:
Parameter:
Ef
If
tk
tpc
rrv
Pi
ib
VSWR
Alt
Unit:
V
A
sec
µs
kv/µs
W
a
ft
1.5:1
10,000
187
240
15
----
10 (surge)
5.5
14
Maximum
11
----
----
----
0.4
54
----
----
Minimum
90
ABSOLUTE RATINGS:
Anode T
Cathode bushing T
Storage ambient T
Parameter:
ºC
ºC
ºC
Unit:
Maximum
150
175
+85
Minimum
----
-55
-55
(See note 17)
(See note 15)
PHYSICAL CHARACTERISTICS:
See figures 1, 1A, 2, 2A, 3, 3A, 4, and 4A.
Weight: 6 pounds (approximate).
TEST CONDITIONS:
Parameter:
tpc
Du
rrv
Ib
Ef
Unit:
µs
----
kv/µs
mA dc
V
---- 2/
Tolerance:
±10%
----
±10%
----
Test 1:
9.1
0.4
0.00065
170
9.8
Test 2:
9.1
0.4
0.00065
170
----
Test 3:
7.9
5.0
0.001
110
15
Test 4:
7.9
5.0
0.001
110
----
Test 5:
7.9
5.0
0.001
60
----
GENERAL:
Qualification - Required.
Service-life guarantee (MIL-PRF-1) - With qualifying activity approval manufacturer may provide service-life guarantee, in lieu of life
test. Guaranteed tube operating time shall be 2000 Hours.
Marking: - Tubes sold under service-life guarantee shall be marked with contract number and with the number of operating
(2000 hours) guaranteed.
AMSC N/A
FSC 5960
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