INCH-POUND
MIL-PRF-1/1614B
9 July 1998
SUPERSEDING
MIL-E-1/1614A
12 December 1974
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, POWER
TYPE 857B
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: Half-wave mercury rectifier.
See figure 1.
Mounting position: Base down.
Weight: 3.5 pounds (1.59 kilograms).
ABSOLUTE RATINGS:
Parameter:
Ef
Epx
ib
Io
T Hg
tk
Frequency
Unit:
Vac 1/
kv
a
A dc
sec
Hz
C
Maximum
5.25
22
40
10
40
----
150
Minimum
4.75
----
----
----
30
60
25
Maximum
5.25
10
40
10
60
----
150
Minimum
4.75
----
----
----
25
60
25
Test 4/
Condition:
5.0
25
----
----
30 to 40
60
60
1/ Increased life may be obtained by using filament 90
30 out of phase with anode excitation.
GENERAL:
Qualification - Required.
AMSC N/A
1 of 4
FSC 5960
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.