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P1800 ES 1800 1973

posted by  142 guy on  Wed Aug 21 17:45 CST 2019
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last visit: Wed Oct 22 20:18 CST 2014
[RELATED]

Mia culpa!

You are correct about the D jet configuration using a common ground on one side of all the injectors. The D jet controller uses PNP transistors with the emitter held at 12 volts and the collector connected to the injectors through 6 ohm resistors. The voltage on the non grounded side of the injector will switch from 0 volts to about 3.2 volts when turned on.

I was clearly stuck in an NPN emitter at ground / MOSFET frame of mind.






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