INCH POUND
MIL-PRF-1/297E
13 November 2009
SUPERSEDING
MIL-PRF-1/297D
3 July 1998
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, MAGNETRON
TYPE 2J55
This specification is approved for use by all Departments
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.
DESCRIPTION: Fixed frequency, 9,375 30 MHz, pulse type, integral magnet, rated peak power output 40 kW.
ABSOLUTE RATINGS:
Parameter:
EF
tk
epy
ib
Pi
pi
tpc
Du
T
Alt
(anode)
s
C
---
ft
Unit:
V
sec
kv
a
W
kw
Maximum:
6.93
---
16
16
180
230
2.5
0.001
100
10,000
Minimum:
---
120
---
---
---
---
---
---
---
---
PHYSICAL CHARACTERISTICS: See figure 1.
Input connection: See figure 1.
Output coupling: Mates with UG52B/U flange (MIL-DTL-3922/59).
Magnet isolation: See note 2.
WEIGHT: 4 pounds (approximate).
MOUNTING POSITION: Any
TEST CONDITIONS: See note 2.
Parameter:
Ef
tk
tpc
trv
Du
Ib
VSWR
T (anode)
s
s
C
Unit:
V
sec
---
mA dc
---
10 %
Tolerance:
---
---
---
---
---
---
---
Test 1:
0
120
1.0
0.2 (max)
0.001
12
1.15 (max)
80
(min)
(approx)
Test 2:
2.5
120
2.0
0.2 (max)
0.00065
8
1.15 (max)
80
note 3
(min)
(approx)
GENERAL:
Qualification - Required.
AMSC N/A
FSC 5960
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