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Wednesday, March 13, 2013

Elenco's Resistance Substitution Box Model K-37 or RS-400

Much like the last Substitution box the Model K-37 is easy to assemble. The resistance values are from 10 ohms to 1000k ohms or 1 meg ohm in 24 steps. A good tool for determining the desired resistance values in circuits under design or test. The video below show the testing out to make sure the knobs are in correct position.
Resisters through my magnifying lamb
Two knobs and switch upper center

The green jumper wires activate the knob based on the switch position
Assembled before adding front panel
Determining correct position for K ohm knob (right)
Determining correct position for the ohm knob (left)
Finished


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