Electricity & Cell Lab
Demonstration Meter
Moving coil type. Basic sensitivity of meter is 5mA, 100mV f.s.d. The meters can be used to demonstrate the working principle of AC or DC ammeters or voltmeters with interchangeable dials. Different dials are available. Housed in a Plastic/Wooden case, with plastic in front and rear.
a) Wooden case b) Plastic case.
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Electricity & Cell Lab
Ballistic Galvanometer
Used for measurement of small quantities of electrical charge.
Levelling Screws for balancing the coil. Coil with mirror suspended between long suspension at the upper end and a spring at lower end. Suspension and spring are made of phosphor bronze alloy. Bakelite case, rigid and robust. Clamping arrangement for transportation. Consistent sensitivity over a large period. Strip provided for making it a periodic
SKU: n/a -
Electricity & Cell Lab
Auto Transformer
Continuously variable voltage auto transformer, protected type.
Type 1 2 3 4 5 Capacity (amps.) 2 4 8 10 15 .
Comprises a torridly wound transformer with a continuously variable output voltage 0 – 260 volts AC. Steplessly under full load. Input 220 to 240 volts AC, 50 Hz. In stout metal case mounted on a metal base with mains cable.1
2
3
4
5
Capacity (amps.)
2
4
8
10
15
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Comprises a torridly wound transformer with a continuously variable output voltage 0 – 260 volts AC. Steplessly under full load. Input 220 to 240 volts AC, 50 Hz. In stout metal case mounted on a metal base with mains cable.SKU: n/a -
Electricity & Cell Lab
Demonstration Dynamo
This model uses the same basic assembly as the electric motor, mounted on a base plate which also carries a hand drive pulley 120 mm in diameter coupled to the smaller dynamo pulley by a rubber belt. Electric output is via a pair of 4 mm socket & a light emitting diode is provided as simple output indicator. The model may also be used as motor on a 4 to 8 volts DC supply.
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Electricity & Cell Lab
Demonstration Dynamo Model A.C
A simple demonstration of a Dynamo Model mounted on a wooden base. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine. A 2 pole armature wound by enamelled copper wire to rotate in U shape magnet in pivot. While in rotation process through the gear wheel by hand, the bulb provided glows.
SKU: n/a
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