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Large Iron Clad Electromagnet (505-3)
A strong enamel covered electromagnet powered by four 1.5 volt C batteries. Equipped with alligator clip leads approximately 6"in length. The unit measures 75mm diameter x 260mm length. Batteries not included.
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Economy Wimhurst Machine (509)
The economy wimhurst machine is used to produce static electricity easily and reliably. Voltage as high as 50,000 volts can be produced depending on humidity and other conditions as well as sparks from two and half inch up to four inches long.
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Van de Graff Generator (509-1)
This mid-size static machine can generate an electric potential of tens of thousands volts for a variety of electrostatic experiments. Comes with a shock-proof power switch and a spherical discharger.
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Separable Leyden Jar (510)
Demonstrate storage of electrical charges! This unit is effective in helping students to understand the function of a dielectric and the buildup of static electricity. The inner and outer metal conductors are separated by a plastic insulator cup. These pieces slide easily in and out of one another. The inner conductor may be removed and the charge measured. When the conductors are replaced the charge is transferred back to them. 3 piece set.
(6-1/2" x 3-1/4" x 3-1/4"; .5lb).
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Gilley Coil (Electromagnet Kit ) (511)
Experiment with induced currents, reversed polarity and magnetic lines of force. Kit includes 2, 350 turn copper coils with 2 binding posts on each coil; 1 round iron core; square iron core; 2 half-round iron cores;
"U"-shaped double core; plastic card; 4 color-coded leads with alligator clips; iron filings in reusable jar; instruction booklet. Operation requires 6 volt dry cell or lab power supply (not included)
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Knife Switch, Small (909)
Single knife single throw.
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Lorentz Force Demonstrator (C63412)
Demonstrates the motion of electrons in a magnetic field, and determines the charge-to-mass ratio of an electron (e/m).
Accelerating voltage is continuously variable between 0 and 250V.
Polarity of voltage on deflecting plates and polarity of electromagnet can both be reverted.
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Energy Conversion Demonstrator (J2481)
To illustrate the changing of energy from one form to another with this classroom demonstration. Three energy sources are provided mounted on a board, a battery, solar cell, and DC generator, for a series of experiments and energy conversions.
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DANIEL CELL (LSE)
Comprises a copper vessel 150x100mm with terminal & perforated shelf, thick zinc rod 150x12.5mm with brass terminal & porous pot 140x50mm complete.
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POROUS POTS (LSE)
Available in following sizes:-
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LEAD ACCUMULATOR (LSE)
Multiplate type, 2 volts 120 Amps. Hard rubber container with plastic lid & screw terminals. Complete with instructions for charging.
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STANDARD CELL (LSE)
Portable type, designed for use inside panel of instruments such as Potentiometers, pH meters, Electronic instruments where internal standardisation is required. Cell is housed inside with engraved acrylic panel Red & Black terminals provided. Internal resistance 1000 to 1500 ohms e.m.f at 20 deg. C is 1.01859
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WORCESTER CIRCUIT BOARD (LSE)
Consists of a base board, complete with terminals, a set of metal connection pillars & a number of clips on flexible connection strips & accessory units; enabling a wide variety of electrical circuits to be constructed quickly & easily. The phosphor - bronze strips are so designed that when flexed a little in the fingers, they are easily slipped over the pass where their natural spring holds them firmly in position & ensures a good electrical contact. Supplied with all the necessary accessories.
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WATER CIRCUIT BOARD (LSE)
Consists of a large board on which is mounted a low voltage electric pump, connected to a 4mm socket terminals that circulates the water through the circuit. The circuit is of clear plastic tubing connected to glass tubes of different bores representing resistances. Across the resistances is connected a detachable manometer show the potential difference. Following the resistance is a taper ended tube discharging into a funnel so that the rate of flow representing the current may be shown. Dimensions of the board : 590x320mm approx.; manometer : 275x155mm approx.
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DEMONSTRATION ELECTRIC MOTOR (LSE)
A model of the simplest form of DC motor; having 3 armatures - 2 pole, 3 pole, & 4 pole, wound with enameled copper wire, & a permanent magnetic field provided by a removable bar magnet. The construction is completely open & all components are readily observable. A disc type commutator is incorporated & external connection to the phosphor - bronze bushes is by means of a pair of 4mm sockets. The motor shall operate on 4.5 to 9 volts DC.
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