Contact Key – Morse Code Key
A brass C.P. spring arm with press knob & two brass terminals. All mounted on bakelite base 80 x 55 mm.
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Demonstration Dynamo
0 out of 5(0)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.
SKU: n/a - Electricity & Cell Lab
Auto Transformer
0 out of 5(0)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
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3
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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
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