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Circuits & Electronics



Alligator Clips w/Banana Cords


Flexible, 18g wire with a banana plug cord at one end and an alligator clip at the other end. Alligator clip has a protective vinyl sheath. Available in pk/6 (3 red & 3 black) or individually.

flexible vinyl sheath
Catalog#  Length  Package  

P56521 12" pk/6
P56522 24" pk/6
P56523 36" pk/6
P56521R 12" (red) ea.
P56521B 12" (black)   ea.
P56522R 24" (red) ea.
P56522B 24" (black) ea.
P56523R 36" (red) ea.
P56523B 36" (black) ea.


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Alligator Clips

cadmium plated excellent conductivity

Cadmium plated, with excellent conductivity.

Catalog#  Description  

P56531 2", insulated, pk/10, 5 red, 5 black
P56533 2", non-insulated, pk/10
P56522 1", non-insulated, pk/4


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Alligator Connectors

18g wire w/vinyl sheath
Flexible, 18g wire with alligator clips at both ends. Alligator clips have protective vinyl sheath. Pk/6 (3 red & 3 black) or individually.

Catalog#  Length  Packaging  

P56501 12" pk/6
P56502 24" pk/6
P56503 36" pk/6
P56501R 12" (red) each
P56501B 12" (black)   each
P56502R 24" (red) each
P56502B 24" (black) each
P56503R 36" (red) each
P56503B 36" (black) each


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1in. sheath


These 24g connector cords feature 1” sheathed alligator clips on each end. They are excellent for all types of low voltage uses. We can custom package these to suit your packaging requirements.

Catalog#  Description  
P56601B Alligator cord, 12", 24g, 1" clip w/ sheath, black
P56601G Alligator cord, 12", 24g, 1" clip w/ sheath, green
P56601R Alligator cord, 12", 24g, 1" clip w/ sheath, red
P56601W Alligator cord, 12", 24g, 1" clip w/ sheath, white (not shown above)
P56601Y Alligator cord, 12", 24g, 1" clip w/ sheath, yellow
P56602B Alligator cord, 24", 24g, 1" clip w/ sheath, black
P56602G Alligator cord, 24", 24g, 1" clip w/ sheath, green
P56602R Alligator cord, 24", 24g, 1" clip w/ sheath, red
P56602W Alligator cord, 24", 24g, 1" clip w/ sheath, white (not shown above)
P56602Y Alligator cord, 24", 24g, 1" clip w/ sheath, yellow
P56603B Alligator cord, 36", 24g, 1" clip w/ sheath, black
P56603G Alligator cord, 36", 24g, 1" clip w/ sheath, green
P56603R Alligator cord, 36", 24g, 1" clip w/ sheath, red
P56603W Alligator cord, 36", 24g, 1" clip w/ sheath, white (not shown above)
P56603Y Alligator cord, 36", 24g, 1" clip w/ sheath, yellow


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Meters


General purpose voltmeter. Full scale accuracy of ±2.5%

general purpose meter
Catalog#  Description  Specification  

P57013 DC Voltmeter 0-3V
P57015 DC Voltmeter 0-5V
P57016 DC Voltmeter 0-10V
P57025 DC Voltmeter 0-5/15V
P57026 DC Voltmeter 0-3/10/15V
P57029 DC Voltmeter 0-3/15/300V


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general purpose meter
General purpose ammeter. Full scale accuracy of ±2.5%

Catalog#  Description  Specification  

P57031 DC Ammeter 0-1A
P57033 DC Ammeter 0-3A
P57035 DC Ammeter 0-5A
P57037 DC Ammeter 0-10A
P57039 DC Ammeter 0-1/5A
P57041 DC Milliammeter 0-1mA
P57043 DC Milliammeter 0-100mA
P57045 DC Milliammeter 0-200mA
P57049 DC Milliammeter 0-50/500mA/5A
P57051 DC Microammeter -20-0-100µA
P57053 DC Microammeter 0-500µA
P57071 AC Ammeter 0-1/5A
P57081 AC/DC Ammeter 0-3A


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General purpose galvanometer

general purpose meter
Catalog#  Description  Specification  

P57061 Galvanometer -35-0-35mV
P57063 Galvanometer -500-0-500µA


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transparent case
P57100-1

These meters with clear scales and transparent cases are designed for classroom demonstration and for training. When used on overhead projectors, they will show not only the readings, but also the range being selected. Extended scales allow negative readings for broader application. Accuracy is better than +/-2.5%. Built-in damping feature allows fast reading. Magnetic shielding prevents influence from external magnetic field. Measures 4X4.5”; weighs 4.3oz.

Catalog#  Description  Range  

P57100-1 Projection Voltmeter 0.5V-0-2.5V and -2V-0-10V
P57100-2 Projection Ammeter -100mA-0-500mA, -500mA-0-2.5A
P57100-3 Projection Galvanometer -300µA-0-300µA


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Rugged plastic construction will stand up to rough student use. This unit is diode and fuse protected.

diode and fuse protected
P63000
Catalog#  Description  Range  

P63000 DC Voltage Range DC Current Range
  2.5V, 10V, 50V, 500V    0.5mA, 10mA, 250mA
  AC Voltage Range Resistance Range
  10V, 50V, 500V 10k Ohm, 1M Ohm


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3.5 digit LCD
P63010

A compact, full featured unit with 3.5 digit LCD readout (0.5” high). Requires one 9V battery (included). 5x2.75”.

Catalog#  Specifications   

P63010 DC Voltage Range DC Current Range
  200mV, 2000mV, 20V 200µA, 2000µA, 20mA
  200V, 1000V 200mA, 10A
  AC Voltage Range Resistance Range
  200V, 750V 200 Ohm, 2000 Ohm
    20k Ohm, 200k Ohm
    2000k Ohm

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big display
P57101-1
big display
P57101-2

These multi-purpose light weight, big display meters are ideal for classroom demonstration. The scale and readings are printed in large bold fonts so students can see them from far away. Teachers can use a rotary switch on the back to select a desired range which will display to the students in window at the front. Moving coil is visible to show its action. Available in two models:

Catalog#  Description      Specification  

P57101-1 DC Voltmeter 0-1V, 0-2.5V, 0-5V, 0-10V, 0-25V, 0-50V, 0-100V,
    0-150V, 0-250V
  Ohmmeter 1 Ohm - 100 Ohm, 10 Ohm - 1k Ohm, 100 Ohm - 10k Ohm,
    1k Ohm - 100k Ohm
  Galvanometer -50µA - 0-500µA
     
57101-2 DC Voltmeter 0-5V, 0-10V
  AC Voltmeter 0-10V, 0-50V, 0-250V
  DC Ammeter 0-1A, 0-5A
  DC Milliammeter 0-10mA, 0-100mA
  AC Ammeter 0-1A, 0-5A
  AC Milliammeter 0-10mA, 0-100mA
  Galvanometer -500µA - 0-500µA

The units have built-in overload protection and zero adjustment. Accuracy is better than +/- 2.5%. Dimensions: 11X12X4.5”. Weight: 2.6lb. Activity manual included.

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Battery Holders & Connectors


15cm red and black leads with insulated snap-in connector.

snap-in connector
P56045
Catalog#  Description  

P56045 9 Volt Battery Connector

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D cell holder
P56044

Single holder can be snapped together in parallel or series to extend capacity or voltage.

Catalog#  Description  

P56044 "D" Cell Battery Holder/Joiner

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D cell holder
P56047
D cell holder
P56048

Each type holds all standard D cell batteries and comes with 6” red and black pre-stripped leads or Fahnestock clips for easy connection. Made of unbreakable plastic. Curved sides help prevent the battery from falling out when it is upside down.

Catalog#  Description  

P56047 D Cell Battery Holder with Fahnstock Clips
P56048 D Cell Battery Holder with Leads

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AA cell holder
P56042
C cell holder
P56043

Holds all standard AA and C cell batteries. With 6” red and black insulated wires for easy connection. Curved sides help prevent the battery from falling out when it is upside down.

Catalog#  Description  

P56042 AA Cell Battery Holder
P56043 C Cell Battery Holder

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Conductivity Tester


This 3.0V conductivity tester is designed to show the electrical properties of various liquids. This unit consists of a molded plastic lamp socket mounted on a base with 2 binding posts for connection of wire cord. Comes complete with bulb, glass tumbler and instruction manual.

conductivity tester
P63132
Catalog#  Description  

P63132 Conductivity of Solutions Apparatus, with Manual

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Lampboards

5-lamp board
P56405

High quality apparatus for studying series and parallel circuits. A comprehensive activity manual and lamps are included.

Catalog#  Description  Specifications  

P56403 3-lamp board 5x10", Acrylic base
P56405 5-lamp board 5x15", Acrylic base

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Lamps & Holders

mini lamp holder
P56102
economy lamp holder
P56103
mini lamp
P56301
lamp holder w/o base
P56101A
plastic holder
P56101

Lamps and lamp holders for low voltage experiments.

Catalog#  Description  Specification  

P56101 Miniature lamp holder, plastic screw type
P56101A Miniature lamp holder w/o base pk/12
P56102 Miniature lamp holder spring posts
P56103 Economy mini lamp holder screw type
P56301 Miniature lamp, pk/10 1.5V, 0.3A
P56302 Miniature lamp, pk/10 2.5V, 0.3A
P56303 Miniature lamp, pk/10 3.8V, 0.3A
P56304 Miniature lamp, pk/10 4.8V, 0.5A
P56305 Miniature lamp, pk/10 6.3V, 0.5A


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Switches

single knife, single throw
P56011
single knife, double throw
P56014
single knife, single throw
P56016
economy switch
P56104

Knife switches for low voltage experiments. These units are available with either thumbscrew or spring binding posts.

Catalog#  Description  Specifications  

P56011 Knife Switch, plastic, screw posts Single knife, single throw
P56012 Knife Switch, plastic, screw posts Single knife, double throw
P56021 Knife Switch, plastic, screw posts Double knife, single throw
P56022 Knife Switch, plastic, screw posts Double knife, double throw
P56013 Knife Switch, plastic, spring posts Single knife, single throw
P56014 Knife Switch, plastic, spring posts Single knife, double throw
P56015 Knife Switch, plastic, spring posts Double knife, double throw
P56016 Knife Switch, plastic, small size Single knife, single throw
P56017 Knife Switch, plastic, small size Single knife, double throw
P56018 Knife Switch, plastic, small size Double knife, double throw
P56104 Economy switch 1.75" diameter plastic base


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This key is used to open and close an electrical circuit momentarily. Excellent for demonstrating Morse code.

contact key
P56030
Catalog#  Description  

P56030 Contact Key

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Banana Plug Cords

flexible, 18g wire
Flexible 18g wire with 2-way stack plugs at both ends. Available in pk/6 (3 red & 3 black) or individually.

Catalog#  Length  Package  

P56511 12" pk/6
P56512 24" pk/6
P56513 36" pk/6
P56511R 12" (red) ea.
P56511B 12" (black)   ea.
P56512R 24" (red) ea.
P56512B 24" (black) ea.
P56513R 36" (red) ea.
P56513B 36" (black) ea.

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Fahnstock Clip


1" long, with hole for mounting.

clip with mounting hole
P56534
Catalog#  Description  

P56534 Fahnstock Clip, pk/10

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Rheostat

slide wire rheostats

These units are an excellent alternative to the higher priced larger rheostats and the performance is the same. Excellent for high school and middle school markets where budgets are tight.

The wire is wound on a porcelain tube and contact is made via a slider with two wide contacts. The slider moves the entire length of the rheostat. These units will operate in temperatures ranging from -10°C to 40°C. Available in the following ranges:

Catalog#  Resistance(Ohms) Current Cap.(Amps)  

P63119 5.0 3.0
P63120 10.0 2.0
P63121 20.0 2.0
P63122 50.0 2.0
P63123 50.0 1.5
P63124 200.0 1.5
P63125 2000.0 0.3

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Resistor Coil Set


A set of three precision resistor coils made of constantan wire, with resistances of 5 Ohm, 10 Ohm, and 15 Ohm respectively. Applications include Ohm’s Law, Wheatstone Bridge and many other experimants on circuits. Low tolerance (1%) allows accurate results.

1% tolerance
P63300
Catalog#  Description  

P63300 Resistor Coil Set

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Motors & Generators

7,000-11,000 rpm
P56046

Operates on 1.5V or 3V DC. 7000– 11000 rpm. Dimensions 40mm L x 21mm D. Weight 23g (0.8 oz).

Catalog#  Description  

P56046 Miniature Motor

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dc motor
P64012

This pre-assembled DC motor was designed for students to learn about electromagnetic forces. The open structure resembles the diagram found in many textbooks. Polarity of the magnets can be reversed to change the direction of rotation. The motor can also be used with a rheostat to observe the change of speed with the change of current. The DC motor can stand vertically or horizontally for best view and operates on a 1.5V battery. Comes in a sturdy plastic storage case along with a student activity manual. 4.5x5x2”.

Catalog#  Description  

P64012 DC Motor

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This hand held D.C. generator is an excellent alternative to more expensive models. It is an ideal tool for demonstrating this transformation of mechanical energy into electrical energy. This unit produces a terminal voltage of 6.3V and a maximum current output of 0.2A. Comes with two 15” leads.

hand held generator
P64002
Catalog#  Description  

P64002 Hand Held D.C. Generator

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AC/DC generator
P64001

This is an excellent unit for demonstrating generator produced alternating or direct current. Simply turn the handle to produce the current which illuminates the light bulb. The faster the handle is turned the brighter the bulb will get. The “open” construction of this unit allows students to see the functioning of the unit. Comes with a 4.8V 0.3A light bulb. Instruction manual included.

Catalog#  Description  

P64001 AC/DC Generator

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Electrolysis


This is the simplest type of electrolysis apparatus. Platinum electrodes are attached to insulated connecting rods which are attached to binding posts mounted on a non-conducting support. The support rests across the top of a battery jar (not included) and has 2 clips that hold 2 inverted test tubes. The unit operates on a 6V battery or 10V DC power supply.

hand held generator
P63141
Catalog#  Description  

P63141 Brownlee Electrolysis Apparatus  

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