INCH-POUND
MIL-PRF-1/986J
7 May 2004
SUPERSEDING
MIL-PRF-1/986H
16 December 2002
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, RADIATION COUNTER
TYPE 7616
This specification is approved for use by all Depart-
ments and Agencies of the Department of Defense.
Requirements for acquiring the electron tube described
herein shall consist of this document and MIL-PRF-1.
DESCRIPTION: Low sensitivity, self-quenching for detection of beta and gamma radiation.
Dimensions: See figure 1.
Mounting position: Any.
Weight: 0.4 ounces (11.34 grams) nominal.
ABSOLUTE RATINGS:
Parameter:
Rp
TA
Barometric pressure, reduced
Unit:
Meg
°C
mm Hg
Maximum:
---
+55
87
Minimum:
---
-20
---
Test conditions:
1.0
---
---
See footnotes at end of table I.
_____________________________________________
GENERAL:
Qualification - Required.
Holding period - 3/
Service-life guarantee (MIL-PRF-1) - With qualifying activity approval manufacturer may provide service-life
guarantee, in lieu of life test. Guaranteed tube operating time shall be 250 hours minimum. Tubes sold
under service-life guarantee shall be marked with contract number and with the number of operating hours
(250 hrs minimum) guaranteed. 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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