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Misc. Electronics Accessories

15 products

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Double Pole Double Throw Knife Switch
Double Pole Double Throw Knife Switch
13223

Knife Switch with Screw Type Binding Posts - Double Pole, Double 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 - Double Pole, Double 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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$3.49 Each
Conductivity Meter Tester
Conductivity Meter Tester
16893

A very simple and easy unit to compare conductivity of different solutions, acids or salts. Dip the probes, press the button and note. The conductivity can be compared in 6 levels. Red LED gives a quick visual comparison. Stainless Steel probes 0.08" (2mm) dia. x 3.25" (80mm) L. Total length with probes 7" (180mm). Body 3.5" (90mm) L x 2.25" (60mm) x 1" (25mm) Thick. Requires 2 AA batteries, not included.
A very simple and easy unit to compare conductivity of different solutions, acids or salts. Dip the probes, press the button and note. The conductivity can be compared in 6 levels. Red LED gives a quick visual comparison. Stainless Steel probes 0.08" (2mm) dia. x 3.25" (80mm) L. Total length with probes 7" (180mm). Body 3.5" (90mm) L x 2.25" (60mm) x 1" (25mm) Thick. Requires 2 AA batteries, not included.

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$19.25 Each
Conductivity Tester
Conductivity Tester
15441

For showing the electrical properties of liquids. Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords. Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler. Light bulb, glass tumbler, and instructions sheets are provided.
For showing the electrical properties of liquids. Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords. Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler. Light bulb, glass tumbler, and instructions sheets are provided.

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$9.25 Set
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
Energy Ball
Energy Ball
12605

By touching two metal strips simultaneously your body becomes a path for charged molecules to complete a circuit. Result: the ball glows brightly. Works with several people creating the path. When opened, the energy ball reveals a working circuit for insight into the world of computers.

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$5.95 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
Resistance Board
Resistance Board
16883

10 kinds of Resistances mounted on a box type plastic base. Ideal for introduction of resistance in a circuit. 5, 10, 15, 200, 470, 1K, 2K, 10K, 50K and 100k resistances. Connection by 4mm sockets. 8"(200mm) x 5"(125mm) x 1"(25mm).
10 kinds of Resistances mounted on a box type plastic base. Ideal for introduction of resistance in a circuit. 5, 10, 15, 200, 470, 1K, 2K, 10K, 50K and 100k resistances. Connection by 4mm sockets. 8"(200mm) x 5"(125mm) x 1"(25mm).

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$22.95 Each
Electric Buzzer 6 - 24V DC
Electric Buzzer 6 - 24V DC
16882

Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.

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$2.30 Each
Copper Voltameter
Copper Voltameter
15879

For demonstrating and conducting electrolysis experiments. Three thick copper plates with brass terminals, suspended from a bakelite cover an inert plastic jar. The outer plates form the anode and the central one is the cathode. The center plate may be taken in or out of the holder easily for weighing. Instructions included.
For demonstrating and conducting electrolysis experiments. Three thick copper plates with brass terminals, suspended from a bakelite cover an inert plastic jar. The outer plates form the anode and the central one is the cathode. The center plate may be taken in or out of the holder easily for weighing. Instructions included.

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$22.95 Each
Simple Voltic Cell
Simple Voltic Cell
15876

Big, for teaching the basic concept of generating electricity electrochemically. Consists of a chemically inert plastic jar with plastic cap fitted with Zinc and Copper plates fitted to terminals. Instructions included.
Big, for teaching the basic concept of generating electricity electrochemically. Consists of a chemically inert plastic jar with plastic cap fitted with Zinc and Copper plates fitted to terminals. Instructions included.

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$14.50 Each
Compact Multimeter
Compact Multimeter
15840

Features 3 1/2 digit, 2,000 count display, transistor test, audible continuity, diode test, signal injector, overload protection, pocket-size, low cost. Dimensions: 5" X 2 29/32" W X 1"D. Weight 4.5 oz.
Features 3 1/2 digit, 2,000 count display, transistor test, audible continuity, diode test, signal injector, overload protection, pocket-size, low cost. Dimensions: 5" X 2 29/32" W X 1"D. Weight 4.5 oz.

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$17.95 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
Bell Demonstration
Bell Demonstration
14719

All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.
All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.

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$31.95 Each
Primary and Secondary Coils
Primary and Secondary Coils
14711

Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.
Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.

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$41.50 Each
Ohm's Law Apparatus
Ohm's Law Apparatus
14710

To verify Ohm's Law. The apparatus consists of one wire wound rheostat, one moving coil voltmeter and one moving coil ammeter, mounted on a bakelite plate in a wooden case. With four terminals, two for battery connection and two for resistance coil. Supplied with one resistance coil, without battery.
To verify Ohm's Law. The apparatus consists of one wire wound rheostat, one moving coil voltmeter and one moving coil ammeter, mounted on a bakelite plate in a wooden case. With four terminals, two for battery connection and two for resistance coil. Supplied with one resistance coil, without battery.

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$103.00 Each