Hyperbolic Match Output

Number:46c

Maker:HEMMI (Japan)

Model:Duplex Slide Rule No. 266 ("ELECTRONICS")

PHOTO

Scales Front: || LL3, LL1, LL2, LL2, A || B, BI, CI, C || D, dB/L , S&S, T&T||

Scales Back: ||X_L, X_c, F, r1 || r2, L, Cf/C, C_z || L, Z, f_o || Some of these Back Scales are multiple scales.

Gauge Marks: π and 2&pi are on A, B, C, D, BI, CI, and DI.

Cursor Front:

Cursor Back:

Construction: 25cm.; Plastic face on laminated wood ; Cursor is framed. Adjustable metal brackets.

Date:

Source: Herman's Archive

Information: Note: There is a qyestion regarding the existence of this slide rule. It was found on the Internet under this number. However the other Hemmi 266 that we see actual pictures of has no hyperbolic scales. So we have a dilemma as to the actuality of this slide rule.