Electronic Match Output

Number:115

Maker:HONO S.R.E ELEKTRON 25
PHOTO

Type:Electro

Length:25 cm

Circular:

Special Scales in Well:N

Special Scales on Stock:N

Gauge Marks:Y

Scales Front:S T F A = B CI C = D P R Π

Scales Back:I/I₀ dB P/P₀

Info: Herman's Archive
The S.R.E. showsa that this rule was sold by Scuola Radio Elettra, an Italian institute proposing correspondence courses in electronics and electricity in general. They offered their pupils also kits to build the instruments they would need for their labs: multimeters, oscilloscopes etc. - and also slide rules.