Reply to "Adding Cruise Control to K-Line J1e Hudson?"

tackindy posted:

Ok John. I've ordered the PN2222a part (10 of em).  I'm trying to figure out which wire goes to which lead on the pn2222a.  They are advertised E, B, and C but I don't know what that means.  

 

That's a great choice of a general purpose transistor. The C, B, E are Collector, Base, and Emitter. In John's diagram, the C is at the top of the transistor where the orange wire goes, the B is in the middle where the 1000 ohm resistor goes, and the E is on the bottom of the transistor where the 100 ohm resistor goes.

Chuck TCA LCCA ARRL BMWMOA



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