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Circuits & Electronics
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| 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. |
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| Catalog# | Length | Package |
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| 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 |
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Cadmium plated, with excellent conductivity. |
| Catalog# | Description |
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| 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 |
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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 |
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| 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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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% |
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| Catalog# | Description | Specification |
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| 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 ammeter. Full scale accuracy of ±2.5% |
| Catalog# | Description | Specification |
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| 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 |
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| Catalog# | Description | Specification |
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| P57061 |
Galvanometer |
-35-0-35mV |
| P57063 |
Galvanometer |
-500-0-500µA |
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 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 |
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| 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. |
 P63000 |
| Catalog# | Description | Range |
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| P63000 |
DC Voltage Range |
DC Current Range |
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2.5V, 10V, 50V, 500V |
0.5mA, 10mA, 250mA |
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AC Voltage Range |
Resistance Range |
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10V, 50V, 500V |
10k Ohm, 1M Ohm |
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 P63010 |
A compact, full featured unit with 3.5 digit LCD readout (0.5” high). Requires one 9V battery (included). 5x2.75”. |
| Catalog# | Specifications | |
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| P63010 |
DC Voltage Range |
DC Current Range |
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200mV, 2000mV, 20V |
200µA, 2000µA, 20mA |
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200V, 1000V |
200mA, 10A |
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AC Voltage Range |
Resistance Range |
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200V, 750V |
200 Ohm, 2000 Ohm
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20k Ohm, 200k Ohm |
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2000k Ohm |
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 P57101-1 |
 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 |
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| P57101-1 |
DC Voltmeter |
0-1V, 0-2.5V, 0-5V, 0-10V, 0-25V, 0-50V, 0-100V, |
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0-150V, 0-250V |
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Ohmmeter |
1 Ohm - 100 Ohm, 10 Ohm - 1k Ohm, 100 Ohm - 10k Ohm, |
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1k Ohm - 100k Ohm |
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Galvanometer |
-50µA - 0-500µA |
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| 57101-2 |
DC Voltmeter |
0-5V, 0-10V |
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AC Voltmeter |
0-10V, 0-50V, 0-250V |
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DC Ammeter |
0-1A, 0-5A |
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DC Milliammeter |
0-10mA, 0-100mA |
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AC Ammeter |
0-1A, 0-5A |
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AC Milliammeter |
0-10mA, 0-100mA |
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Galvanometer |
-500µA - 0-500µA |
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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. |
 P56045 |
| Catalog# | Description |
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| P56045 |
9 Volt Battery Connector |
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 P56044 |
Single holder can be snapped together in parallel or series to extend capacity or voltage. |
| Catalog# | Description |
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| P56044 |
"D" Cell Battery Holder/Joiner |
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 P56047 |
 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 |
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| P56047 |
D Cell Battery Holder with Fahnstock Clips |
| P56048 |
D Cell Battery Holder with Leads |
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 P56042 |
 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 |
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| 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. |
 P63132 |
| Catalog# | Description |
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| P63132 |
Conductivity of Solutions Apparatus, with Manual |
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| Lampboards |
 P56405 |
High quality apparatus for studying series and parallel circuits. A comprehensive activity manual and lamps are included. |
| Catalog# | Description | Specifications |
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| P56403 |
3-lamp board |
5x10", Acrylic base |
| P56405 |
5-lamp board |
5x15", Acrylic base |
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| Lamps & Holders |
 P56102 |
 P56103 |
 P56301 |
 P56101A |
 P56101 |
Lamps and lamp holders for low voltage experiments. |
| Catalog# | Description | Specification |
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| 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 |
 P56011 |
 P56014 |
 P56016 |
 P56104 |
Knife switches for low voltage experiments. These units are available with either thumbscrew or spring binding posts. |
| Catalog# | Description | Specifications |
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| 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. |
 P56030 |
| Catalog# | Description |
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| P56030 |
Contact Key |
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| Banana Plug Cords |
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Flexible 18g wire with 2-way stack plugs at both ends. Available in
pk/6 (3 red & 3 black) or individually. |
| Catalog# | Length | Package |
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| 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. |
 P56534 |
| Catalog# | Description |
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| P56534 |
Fahnstock Clip, pk/10 |
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| Rheostat |
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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) |
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| 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. |
 P63300 |
| Catalog# | Description |
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| P63300 |
Resistor Coil Set |
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| Motors & Generators |
 P56046 |
Operates on 1.5V or 3V DC. 7000– 11000 rpm. Dimensions 40mm L x 21mm D. Weight 23g (0.8 oz). |
| Catalog# | Description |
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| P56046 |
Miniature Motor |
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 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 |
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| 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. |
 P64002 |
| Catalog# | Description |
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| P64002 |
Hand Held D.C. Generator |
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 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 |
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| 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. |
 P63141 |
| Catalog# | Description |
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| P63141 |
Brownlee Electrolysis Apparatus |
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