INCH-POUND
MIL-PRF-1/1657E
30 September 2009
SUPERSEDING
MIL-PRF-1/1657D
1 October 2003
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, NEGATIVE GRID (MICROWAVE)
TYPE 8727
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: Triode, pencil, ceramic-metal.
See figure 1.
Mounting position: Any.
Weight: 0.3 ounce (8.5 grams) nominal.
ABSOLUTE RATINGS: Class C amplifier
Barometric
Parameter:
Ef
Eb
Ec
Ehk
Rk
Rg
Ik
Ic
Pp
TE
pressure,
reduced
MegΩ
C
Unit:
V
V dc
V dc
V
Ohms
mA dc
mA dc
W
mmHg
250
6.9
0
Maximum:
+50
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0.25
25
8
6
225
2.5
5.7
Minimum:
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-50
-50
Test condition:
6.3
125
8/
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50
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_______________________________________________________________________________________________
GENERAL:
Qualification - Not required.
AMSC N/A
FSC 5960
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
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