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Re: I'm Kinda Dense: Alternators Again
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Posted by Doug in OR on March 09, 2005 at 20:10:39 from (24.20.250.197):
In Reply to: Re: I'm Kinda Dense: Alternators Again posted by Allan in NE on March 09, 2005 at 19:58:59:
With the switch turned on (pin 1 energized) transistor TR1 will conduct. This will result in current flowing through the field windings, through TR1, and then to ground. It is going to draw current in this mode. Enough current to kill your battery in days, or less. Check for yourself. With a positive voltage applied to the base of an NPN transistor, it will conduct. That's how those things work - or have worked since my first inkling of electronics training 35 years ago. Whoops, I'm telling my age. LOL!
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