INCH-POUND
MIL-PRF-1/985D
22 August 2014
SUPERSEDING
MIL-PRF-1/985C
10 May 2007
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, RECEIVING
TYPE 5U4GB
Inactive for new design
after 21 July 1997.
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 specification sheet and MIL-PRF-1.
DESCRIPTION:
Rectifier, full wave, high vacuum.
Outline
- - - 12-16.
Base
- - - B5-121.
Envelope
- - - T12.
Cathode
- - - Coated filament.
Base connections:
Pin no.
---
1
2
3
4
5
6
7
8
Element - - -
nc
f
---
2a
---
1a
---
f
ABSOLUTE RATINGS:
Parameter:
Ef
Epp/a
epx
ib
Io
R1
CL
i(surge)
Alt
µF
Unit:
V ac
V ac
v
ma
mA dc
Ohms
a
ft
Maximum:
5.5
---
1,700
1,100
300
---
---
5.0
10,000
Minimum:
4.5
---
---
---
---
---
---
---
---
Test conditions:
5.0
550
---
---
---
1,950
10
---
---
GENERAL:
Qualification - Not required.
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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