INCH-POUND
MIL-PRF-1/906E
7 May 2004
SUPERSEDING
MIL-PRF-1/906D
23 July 1999
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, RADIATION COUNTER
TYPE 5979
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: Mica end window, halogen-filled, high sensitivity, self-quenching for detection of beta and gamma radiations.
Dimensions: See figure 1.
Mounting position: Any.
W eight: 2.82 ounces nominal.
ABSOLUTE RATINGS:
Parameter:
Ebb
TA
Rp
Unit:
V dc
Meg
°C
Maximum:
725
75
---
Minimum:
675
-40
---
Test conditions:
700
---
1.0
See footnotes at end of table I.
____________________________________________________________________________________________
GENERAL:
Qualification: Required. 2/
Holding period: 11/
Marking: 3/, 16/. Tubes sold under service-life guarantee shall be marked with contract number and with the number of operating
hours (500 hours minimum) guaranteed.
Response characteristics: 1/
Service-life guarantee (MIL-PRF-1): W ith qualifying activity approval manufacturer may provide service-life guarantee, in lieu of life
test. Guaranteed tube operating time shall be 500 hours minimum. 16/
Comments, suggestions or questions on this document should be addressed to Defense Supply Center Columbus,
ATTN: DSCC-VAT, P.O. Box 3990, Columbus, OH 43216-5000 or e-mailed to TubesFiberOptic@dla.mil. Since
contact information can change, you may want to verify the currency of this address information using the ASSIST
Online database at www.dodssp.daps.mil.
AMSC N/A
FSC 5960
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