LS Series Inductance Decade Box

LS-400 Inductance Box

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Photo represents example of series. See datasheet for more details on any specific model.

  • Accurate 2%
  • Cost effective for lab or educational uses
  • Wide range from 50 µH - 10 H
  • Broad choice of 3 standard models, the LS-400, LS-400A, LS-400L
  • Compact, convenient, and rugged
  • Direct reading and Error proof 
  • Color Coded
Prices range from $685 to $989

Estimated Delivery is 2 to 3 weeks

Repair/Calibration Quote Technical Support Request


The LS Series Inductance Decade Box is the most commonly used inductance substitution box on the market today. The LS Series is not only easier to use, but it is also priced lower than almost all of its competition.

The LS Series is an economical, indispensable set of inductors with a variety of uses in engineering, design, troubleshooting, or service fields.

One nice feature of the LS Series is that it uses convenient side by side, color coded, thumbwheel switches allowing for direct reading — There is no fumbling with multiple slide or rotary switches. Simply dial in the desired values and use!

Made of high impact plastic and weighing less then a pound, these inductance decade boxes are very portable and can reduce clutter on a busy lab bench.

Watch a video about the

LS Series Inductance Decade Box

LS Series Inductance Decade Box Basic Specifications

(See Datasheet for Full Specifications)

Model
LS-400
LS-400A
LS-400L
Type of Substituter
Wide Range Inductance
Inductance
Low Inductance
Accuracy
±(2%+0.5 μH)
Decades
4
3
6
Range
0 - 9.999 H
0 - 999 mH
0 - 999.999 mH
Resolution
1 mH
1 mH
1 μH
Type of Components
Toroidal Inductors
Test Conditions 1 kHz; 0.1 Vrms; series model; 23ºC.
Residual
≤0.23 Ω;  ≤1 µH
≤0.17 Ω;  ≤1 µH
≤0.34 Ω; ≤1.5 µH
Physical 12 x 7.9 x 5.6 cm, 23g (4.7 x 3.1 x 2.2 in, 8 oz)

Additional Frequency Information

Inductance
Frequency Range
Max. Q
Rating
0.1 - 0.9 mH
300 Hz - 2MHz
100 @ 800 kHz
700 mA
1 - 9 mH
300 Hz - 1MHz
80 @ 40 kHz
500 mA
10 - 90 mH
300 Hz - 800 kHz
80 @ 40 kHz
300 mA
0.1 - 0.9 H
300 Hz -200 kHz
40 @ 20 kHz
100 mA
1 -9 H
200 Hz - 20 kHz
30 @ 8 kHz
20 mA
10 -90 H
200 Hz - 6 kHz
60 @ 2 kHz
4 mA

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