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Single Pole Single throw Knife Switch
Single Pole Single throw Knife Switch
13222

Knife Switch with Screw Type Binding Posts - Single Pole, Single Throw. Great for classroom and laboratory experiments, the knife switch has a mounted screw type binding post for a solid electrical connection.
Knife Switch with Screw Type Binding Posts - Single Pole, Single Throw. Great for classroom and laboratory experiments, the knife switch has a mounted screw type binding post for a solid electrical connection.

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$2.29 Each
Tangent Galvanometer
Tangent Galvanometer
16884

This apparatus is used to demonstrate and teach the basic principle of an electric meter. Apparatus consists of a 3.75" (90mm) dia. air coil wound on an acrylic tube with an acrylic plate in the center to hold a compass. The coil has multiple tappings of 50, 100 and 200 turns, and also has a built-in potentiometer for varying the current, these features allow multiple readings. Operates on one "AA" battery (not included). Includes one compass. Base 7.34" (195mm) x 4.75" (120mm) x 0.5" (12mm). Total height 4.25" (110mm).

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$69.00 Each
Telegraph Key
Telegraph Key
14727

Mounted on solid plastic base. Measuring 11cmx5cm.
Mounted on solid plastic base. Measuring 11cmx5cm.

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$5.95 Each