INCH-POUND
MIL-PRF-1/1729E
26 April 2013
SUPERSEDING
MIL-PRF-1/1729D
11 July 2007
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, NEGATIVE GRID (MICROWAVE)
TYPE 8538B 17/
Inactive for new design
after 11 July 2007
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, planar, ceramic and metal construction.
See figures 1 and 1A.
Mounting position: Any.
Weight: 0.7 ounce (20 grams) nominal.
ABSOLUTE RATINGS:
Parameter:
F
Ef
Eb
epy
Ec
ib
Ib
ic
tp
Du
µs
Unit:
GHz
V 1/ 11/
kV dc
kv
V dc 3/
a 2/
mA dc
a
---
Maximum:
Anode pulsed
6.3 ±5%
osc or amp:
3.0
---
10
-300
5.0
---
2.5
6.0
0.0033
Grid pulsed
6.3 ±5%
osc or amp:
3.0
8.0
---
-300
5.0
---
2.5
6.0
0.0033
Test conditions:
---
6.3
1.0
---
Adj
---
100
---
---
---
ABSOLUTE RATINGS:
Barometric
Parameter:
Pp
Pg
tk
TE
T (anode
pressure,
Cooling
shank)
reduced
°C 4/
°C 4/
Unit:
W
W
sec (min)
mmHg 5/
--- 4/
Maximum:
Conduction
Anode pulsed
100
1.5
60
250
250
35
and
osc or amp:
convection
Conduction
Grid pulsed
100
1.5
60
250
250
35
and
osc or amp:
convection
Test conditions:
---
---
300
---
---
---
6/
See footnotes at end of table I.
GENERAL:
Qualification: Required.
19/ 20/
This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III.
AMSC N/A
FSC 5960
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