INCH-POUND
MIL-PRF-1/1331F
9 July 2004
SUPERSEDING
MIL-PRF-1/1331E
8 July 1999
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, POW ER
TYPE 7609
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.
See figure 1.
Mounting position: Any.
W eight: 4 ounces nominal.
ABSOLUTE RATINGS: F1 = 150 MHz; F2 = 500 MHz.
Parameter:
Ef
Eb
Ec1
Ec2
Ehk
Ib
Pg1
Pg2
Pp
Unit:
V ac 2/
V dc
V dc
V dc
V dc
mA dc
W
W
W
Maximum:
C Teleg: (Up to F1)
---
2,000
-250
300
250
2
12
250
±150
C Teleg (F1 to F2)
---
1,250
-250
300
250
2
12
250
±150
Test conditions:
26.5
2,000
Adjust
300
0
150
---
---
---
ABSOLUTE RATINGS: F1 = 150 MHz; F2 = 500 MHz.
Parameter:
T (base seal)
T (anode seal)
T (anode core)
tk
sec (min)
Unit:
°C 1/
°C 1/
°C 1/
Maximum:
C Teleg: (Up to F1)
175
200
250
30
C Teleg (F1 to F2)
175
200
250
30
Test conditions:
3/
---
---
120
____________________________________________________________________________________________
GENERAL:
Qualification: Required.
AMSC N/A
FSC 5960
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