F.330 Data Sheet MJS-p-0327

back to Collection Data Sheets

Relay-Ricoh, 99-7030, c.1965

Serial Number or Date Stamp:

Country: JPN

Primary construction material: bb

Case included?: yes

General Description: Basic linear polyphase simple slide rule

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

Front Scales: cm /| A [ B CI C ] D K || in

Back Scales: [ S L T ]

Notes: Lafayette 99-7030; table of gauge settings, equations on back; Unitrode advertising on case; owner Richard T. Schroeder

References: https://sliderulemuseum.org/Ricoh.shtml#Lafayette

Date Acquired: 11/20/2023