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ACCUMULATORS, IN TRANSPARENT CASE 45 AH (0368)
In transparent plastic case with handle and terminals marked positive and negative, providing steady output of 2V Supplied uncharged, without acid. Charging instructions printed on the case.
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POROUS POT, CYLINDRICAL (0369)
For use in electrochemistry for the construction of voltaic cells.
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POROUS POT, CYLINDRICAL 100x50mm (0369)
For use in electrochemistry for the construction of voltaic cells.
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POROUS POT, CYLINDRICAL 150x50mm (0369)
For use in electrochemistry for the construction of voltaic cells.
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ELECTRIC BELL, LOW VOLTAGE (0370)
It has twin coil, operates on both battery or low voltage transformer supply. With detachable. snap-on type plastic cover to show inner construction. Dome gong diameter 75mm approx.
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ELECTRIC BELL (0371)
Similar to ELECTRIC BELL, LOW VOLTAGE but works on 230V AC, 50/60Hz
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MOTOR MODEL, OPEN TYPE, WITH NEWTON'S COLOUR DISC (0372)
Open type simple DC motor showing conversion of electrical energy into mechanical energy. Mounted on wooden base, works on 4-6 volts DC. With Newton's colour disc attached vertically to the motor shaft.
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MOTOR MODEL, DC 3 POLE (0373)
Open type. demonstrates the working of a simple DC motor. Operates on 4-6 volts DC, with pulley mounted on shaft. Complete assembly mounted on base.
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MOTOR, OPEN MODEL (0374)
Large size, mounted on base. Open construction shows the working of a 3pole DC motor with easy identification of the parts. Works on 4-8 volts DC. Armature wound with enameled copper wire on insulated plastic bobbin and rotates between two curved iron strips. Field provided by an electromagnet mounted below the armature
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DEMONSTRATION MOTOR, ST. LOUIS (0375)
For the study of the fundamental principals of electric motor and generators showing conversion of electrical energy into mechanical energy and vice-versa. The motor has open type construction and consists of a two-pole DC armature. The brush holder, with two heavy binding post terminals, may be rotated for experiments. The permanent bar magnets are supported by spring-brass clamps which are un-adjustable in the horizontal plane to show the effects of pole separation. Complete with two bar magnets and a two-pole DC armature.
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DEMONSTRATION ELECTRIC MOTOR (0376)
A model of the simplest form of DC electric motor, having 2-pole armature wound with enameled copper wire on insulated plastic bobbin. and a magnetic field provided by a removable permanent magnet. The construction of the model is completely open with all components easily dentifiable and functioning clearly observable. A disc-type commutator is incorporated and external connection to the phosphorus bronze bushes is by means of a pair of 4mm colour coded sockets. The motor operates on 6-8 volts DC.
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DEMONSTRATION DYNAMO, AC/DC (0377)
Shows the conversion of mechanical energy into electrical energy and principle of working of simple AC and DC dynamos. Complete assembly mounted on a base and capable of generating both AC and DC simultaneously as indicated by the glowing of bulb present on the base. A two-pole armature wound from enameled copper wire on insulated bobbin is mounted in shaft supported on moulded plastic legs on either side and is positioned between two curved iron strips. The shaft carries split ring commutator on one side for DC output and slip ring commutator on the other side for AC output, which is available through 4mm sockets mounted on respective sides and selectable through a sliding switch. Magnetic field provided by a permanent magnet on top of curved strips. The complete arrangement driven by a hand-cranked bigger driving wheel with handle through an endless rubber belt.
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DEMONSTRATION DYNAMO, SIMPLE (0378)
Model mounted on a base, which also a hand-driven pulley coupled to the smaller d y n a m 0 pulley through an endless rubber belt to give a step-up ratio. Electrical output is via a pair of 4mm sockets and a light emitting diode is provided as simple output indicator. The model can also be used as a motor operating on a 6-8V DC supply
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DYNAMO MODEL, WITH SOLAR CELL (0379)
A small motor which operates from 1.5 to 4.5V DC with small pulley. The unit is capable of rotating a small propeller mounted on mini motor to explain conversion of solar energy into electrical energy and then into mechanical energy. The complete solar cell and the motor unit mounted in a clear acrylic case for easy viewing by students. Provides quite effective demonstration in day light or in light of a normal 100W bulb.
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BICYCLE DYNAMO ASSEMBLY (0380)
For showing slow AC on an oscilloscope or meter or for demonstrating the use of a dynamo mounted in lighting a lamp. This apparatus has a cycle dynamo mounted on a base and provided with two sets of gears driven by a hand crank for fast and slow rotation. Two 4mm socket terminals are provided for the dynamo output, connected in parallel with an MES lamp holder and 2. 5V bulb
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