INCH-POUND
MIL-PRF-1/1634E
16 December 2002
SUPERSEDING
MIL-PRF-1/1634D
7 October 1996
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, POWER
TYPES 8321, 8321A, AND 8322
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.
DESCRIPTION: Tetrode, ceramic-metal (see figure 1).
Mounting position: Any.
Weight: 4 ounces (113.4 grams) nominal.
ABSOLUTE-MAXIMUM RATINGS:
Parameter
Ef
F1
tk
Eb
Ec1
Ec2
Ehk
Ib
Mhz
mA dc
sec (min)
V dc
V dc
V dc
V dc
V ac
Note 1
Class AB1:
6.0 ±10%
±150
110
30
2500
----
400
275
8321, 8321A
26.5 ±10%
±150
110
60
2500
----
400
275
8322
Class A:
6.0 ±10%
±150
8321, 8321A
110
30
2500
----
400
400
26.5 ±10%
±150
8322
110
60
2500
----
400
400
Test Condition:
8321, 8321A
6.0
----
120
1000
Adj
300
0
150
8322
26.5
----
240
1000
Adj
300
0
150
Cooling
Altitude
Parameter
Ic1
Pg2
Pp
T
(anode core and seals)
°C
mA dc
W
W
Ft
Note 2
Class AB1:
8321, 8321A
2.0
8.0
350
----
10,000
250
8322
2.0
8.0
350
----
10,000
250
Class A:
8321, 8321A
----
8.0
350
250
----
10,000
8322
----
8.0
350
250
----
10,000
Test Condition:
8321, 8321A
----
----
----
----
Note 3
----
8322
----
----
----
----
Note 3
----
GENERAL:
Qualification: Required.
Special requirement: See note 18.
Performance requirements: Unless otherwise specified, all tubes listed on this TSS
shall utilize the same test conditions and requirements.
Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this
document should be addressed to: Defense Supply Center Columbus, ATTN: DSCC-VAT, 3990 East Broad Street, Columbus, OH
43216-5000, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document
or by letter.
AMSC N/A
1 of 8
FSC 5960
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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