F.420 Data Sheet MJS-p-0373

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USA Mil, RADIAC ABC-M1, c.1967

Serial Number or Date Stamp:

Country: USA

Primary construction material: pl

Case included?: yes

General Description: Specialty circular military slide rule

Length of 1 decade = 2 in, and overall scale length = 14 in. The largest physical dimension is 5 in.

Front Scales: DoseRate [ Time ] [ Texit/entry ]

Back Scales:

Notes: Part of M28 Nuclear Calculator Set; also M4 computer

References: https://www.orau.org/health-physics-museum/collection/nuclear-slide-rules/weapons-effects/abc-m1a1-radiac-calculator.html; see Army Tech Manual TM 750-5-15

Date Acquired: 01/31/2025