Deci-Multiphase Log Log Slide Rule: Model 3

L. E. Jones

Accession Number: 2010.lej.14


“A 10″ All-metal slide rule. Magnesium body and aluminum posts. The frameless cursor is made of flat plastic and aluminum. Grooves are present on the stock. The
instrument comes with a grey felt cover (to avoid corrosion problems encountered with
magnesium slide rules) and a grey cardboard box. Comes with an instruction booklet. Scales: Front: ∛, DF, CF, T, ST, S. CI, C, D, DI, √. Back: 1/N1 (0.00D), 1/N2 (0.0D), 1/N3 (0.D), 1/N4(D), DF/M, CF/M, CI , C, D, N1 (0.00D) , N2(0.0D), N3(0.D), N4(D). Markings : F609068;”

Alternative Name:

Primary Materials: Metal, Plastic

Markings: Old inventory number = 14.

Dimensions (cm):

Length = 31.2 cm, Width = 6.1 cm, Height = .9 cm

Function: Facilitating calculations.


Item is in good condition. The slide is stuck possibly due to corrosion.

Associated Instruments:

Manufacturer: Pickett and Eckel Inc. Alhambra, Calif.

Date of Manufacture: c. 1949-1953


Donated to UTSIC: No

Historical Notes: