INCH POUND
MIL-PRF-1/385D
1 October 2009
SUPERSEDING
MIL-PRF-1/385B
7 April 1999
PERFORMANCE SPECIFICATION SHEET
ELECTRON TUBE, CATHODE RAY
TYPES 3DP1A AND 3DP1A+S2
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: Electrostatic deflection and focus with decalcomania inscription on tube type 3DP1A+S2
DIMENSIONS AND PIN CONNECTIONS: See figures 1 and 2
ABSOLUTE RATINGS:
Parameter:
Ef
Ec1
ed
Eb1
Eb2
Light
Rg
Zd
Ehk
Alt
output
MegΩ
MegΩ
Unit:
V
V dc
v
V dc
V dc
fL
V dc
ft
Maximum:
6.9
0
550
1,100
2,200
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1.5
1.0
-125
10,000
Minimum:
5.7
-200
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1,500
7.5
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Test Conditions:
6.3
Adj
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Focus
1,500
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GENERAL:
Qualification - Required
AMSC N/A
FSC 5960