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Part 3: AA batt as a Joule Ringer core

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Description

TinMan asked a good question, could the whole AA battery be wound on and work in the Joule Thief circuit.
Yep, works well, the whole battery is covered.
The connections are - the end of 1 wire connection to the start of the other for the Positive connection. Thin wire to the Base of the transistor, thicker wire to the Collector.
Between the coil layers is a layer of packing tape, to act as a dielectric and to protect the first windings from those above.

Current draw for a 1W LED is 50mA and the output is approx 1/2 full brightness.

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