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Resistance Boxes
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* | #1800-2 Resistance
Box, 3 Switch.
A multi-resistor box with resistance ranging form 0 to 999 ohm. Coils calibrated to accuracy of 0.2%. Coils have noninductive windings so box is acceptable in both DC and AC experiments. All coils firmly locked into place to eliminate physical strain on wires. Box is black plastic. Measures 5 1/2" x 7" x 2 1/2". Other features; silk-screened cover, insulated binding posts, pointer knobs, and multiple switches with wiping contacts. Instructions provided. # 1800-3 Resistance
Box, 2 Switch.
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