Concise, 380, c.1959-1966
Serial Number or Date Stamp:
|Country: JPN||Primary construction material: pl||Case included?: no|
General Description: Specialty circular electronics slide rule
Length of 1 decade = 2 in, and overall scale length = 2 in. The largest physical dimension is 4 in.
Front Scales: L [ C F ] XL X dBvi dBw
Back Scales: C [ L F ] Xc Freq Lambda Fcs
Notes: Radio Computer, with instruction sheet; Concise Co., Ltd.
Date Acquired: 07/30/2021