@ADCX Rob posted:The series winding diagram is correct. The shunt winding diagram will draw too much current, 2-3 times what it was designed for, causing an overload on the power supply and overheating of the armature & field.
Which exactly describes what I was seeing. But when I tried the series connection like your original from the older thread, I could NOT get it to behave. There was something that introduced a DC bias (had to be the bridge, right?) That would cause the engine to start normally, blow continuous horn in forward, go to neutral and start ringing continuous bell, go into reverse and horn would stop but bell would continue, go into neutral and all sounds stopped, then repeat with horn blowing continuous in forward again.
Since the PS1 boards are programmed to blow horn in positive DC bias and bell at negative, it makes sense that when the polarity of the motor lead outputs switched, something in the bridge diodes produced a constant bias depending on which side of the "AC" leg of the bridge was being fed.
Would be nice to know where I messed up because if I can get them hooked up in series like you say, I'm guessing I run less if a risk of feeding too much voltage.
