INCH-POUND
MIL-PRF-1/889J
17 April 2008
SUPERSEDING
MIL-PRF-1/889H
16 December 2002
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, POWER
TYPES 7203 AND 7203A
This specification is approved for use by all Depart-
ments and Agencies of the Department of Defense.
The requirements for procuring the electron tube described
herein shall consist of this document and MIL-PRF-1.
DESCRIPTION:
Tetrode, ceramic-metal.
See figure 1 (required for interchangeability).
Mounting position: Any.
Weight: 4 ounces nominal (113.4 grams).
ABSOLUTE RATINGS: C Telegraphy
Ib
Ehk
Ec2
Ef
Ec1
F1
Eb
Parameter:
mAdc
Vdc
Vdc
Vac
Vdc
MHz
Vdc
±150
250
300
---
-250
500
2,000
Maximum:
---
---
1/
---
---
---
Minimum:
---
150
300
Adj
---
1,000
Test conditions:
6.0
0
Cooling
tk
T (seal and anode core)
Pp
Pg2
Pg1
Parameter:
°C
sec
W
W
W
---
---
250
12
2
Maximum:
250
2/
30
---
---
---
Minimum:
---
120
---
---
---
Test conditions:
3/
---
See footnotes at the end of table 1.
GENERAL: Qualification - Required.
AMSC N/A
FSC 5960
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