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NESTLER POCKET » ELEKTRO «
( 12.5 cm Scales )
Albert Nestler, Lahr in Baden / Germany (1950)
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VERSION (A)
SCALES of the NESTLER P O C K E T ELEKTRO Model 0137
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Front Side [ inverse / RED ] Back Side
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( 0 ... 13 cm Ruler )
[ Dynamo 20 .. 30 ... 100 ] .. 90 ... 30 .. 20 Motor
Volt 0.5 .. 0.6 ... 1 .. 2 .. 3 ... 9 .. 10
(A) kW X2
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(B) PS X2 (S) sin(0.1X); sin(0.01X)
[CI] [1/X] (L) lgX
(C) X (T) tan(0.1X)
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(D) X
cosφ 0.7 .. 0.8 .. 0.9 ... 0.99 .. 0.95
0.1 .. 0.15 .. 0.2 ... 0.6 .. 0.7
R E M A R K S : ( 1° = 60' ; 1' = 60" )
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The TRIGONOMETRIC SCALES are divided in MINUTES & SECONDS
S keyed to A/B ; T keyed to C/D
There are 2 VERSIONS of the MODEL 0137 in the Collection:
( Both came in a leather cases )
Newer (1960) Version (B)
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The SLIDER is GREEN and the (same) scales are marked A/B,CI,C/D.
The newer CURSOR has an additional HAIRLINE left-up (= Area-Mark)
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