INCH-POUND
MIL-PRF-1/1640E
17 April 2014
SUPERSEDING
MIL-PRF-1/1640D
18 October 2002
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, MAGNETRON
TYPE 8855
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: Coaxial, tunable frequency 8,500 to 9,600 MHz, pulse type, integral magnet,
200-kw rated peak power output.
ABSOLUTE RATINGS:
Parameter:
Ef
if (surge)
tk
tpc
rrv
Du
epy
ib
µs
kv/µs
Unit:
V
a
sec
---
kv
a
Maximum:
15
12
---
2.8
160
0.0011
24
30
Minimum:
---
----
150
0.2 3/
90 4/
----
----
15
ABSOLUTE RATINGS:
Tuner
Pressurization
Parameter:
Pi
pi
T(body)
stop torque
Alt
Input
Output
°C
Unit:
W
kw
inch-ounce
ft
psia
psia
Maximum:
680
680
160
60
----
45
45
Minimum:
-55 7/
----
----
----
6,000
12
12
PHYSICAL CHARACTERISTICS:
Dimensions:
See figure 1.
Marking:
25/
Mounting position:
Any.
Cooling:
Forced air 7/
Mounting support:
See figure 1.
Handling:
5/
Input coupling:
20/
Weight:
13 pounds (approximate)
Output coupling:
20/
See footnotes at end of table I.
AMSC N/A
FSC 5960
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