A-A-50761
30 MAY 86
COMMERCIAL ITEM DESCRIPTION
OSCILLOSCOPE
The General Services Administration has authorized the use of this commercial item description.
Scope. Intended use is for common Aerospace Ground equipment for Use with Electrical and Electronic Equipment, General Specification.
Salient characteristics.
1. Cathode-Ray Tube and Controls.
a. Main Frame
(1) Type: post-accelerator storage: approximately 8.5 KV accelerating potential; aluminized P31 phosphor.
(2) Graticule: 8 X 10 div internal graticule, 0.2 subdivision markings on major horizontal and vertical axes 1 div = 0.95 cm. Font panel adjustment alights trace with graticule.
(3) Beam Finder: returns trace to CRT screen regardless of horizontal or vertical control setting.
(4) Intensity Modulation (external input) Input Approx +2V, ≥ 50 ns Pulse width (≤ 10 MH sine wave) will blank trace of normal intensity.
(5) Input R: approx 5kΩ
(6) Maximum Input: ± 20V (dc + peak ac).
(7) Persistence.
(8) Normal: natural persistence of P31 phosphor (approx 40 µs).
(9) Variable: from < 0.2s to >1 min.
(10) Storage Writing Speed.
(11) Write Mode: > 20 cm/ms.
(12) Max Write Mode: > 5cm/µs.
(13) Brightness: >342.6 cd/m2 (100 foot lambert)
(14) Storage Time: from write mode to store, trace may be stored at reduced intensity >1 hour; to view mode, traces may be viewed at normal
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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