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Old 03-26-2012, 08:54 PM
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Turion Turion is online now
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I would give Matt's circuit a try. If you can't figure it out, we'll help you. If you get the spec sheet on the MJL21194 it shows the base, collector and emitter.
The base goes to the 100 ohm 1/2 watt resistor. The emitter goes to the 1 ohm 100 watt resistor, and the collector goes to the plus on batt 3 and then over to the other end of the 100 ohm 1/2 watt resistor. On the Transistor the three prongs are B C E. Hope that helps, and that I haven't screwed those directions up.

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