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Three Step Inductor
This three step inductor consists of a coil of enamelled copper wire wound over an insulated spool. The coil consists of 4 layers of 200 turns each. The tappings at 200, 400 and 800 turns are brought out at 4 mm sockets. The output inductances at these tappings are as follows.
No. of turns Resistance 200, Inductor 0.3 mH, Resistance 0.6 ?;
No. of turns Resistance 400, Inductor 1.2 mH, Resistance 1.2 ?;
No. of turns Resistance 800, Inductor 5.0 mH, Resistance 2.6 ?.
One can easily change the inductor value of the instrument on just inserting a soft iron core inside the bobbin.
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This three step inductor consists of a coil of enamelled copper wire wound over an insulated spool. The coil consists of 4 layers of 200 turns each. The tappings at 200, 400 and 800 turns are brought out at 4 mm sockets. The output inductances at these tappings are as follows.
No. of turns Resistance 200, Inductor 0.3 mH, Resistance 0.6 ?;
No. of turns Resistance 400, Inductor 1.2 mH, Resistance 1.2 ?;
No. of turns Resistance 800, Inductor 5.0 mH, Resistance 2.6 ?.
One can easily change the inductor value of the instrument on just inserting a soft iron core inside the bobbin.
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