are the solenoids on the kohout board one shots? i put a mpu and driver in a flash. 3 weeks later, it baked a pop bumper coil. its 5 hrs from my house .
i sent kohout an email, no reply so far. its the first time i used one, i always used rottendogs, i believe they were one shots.

thanks

#2 3 years ago

TOX

ChrisHibler

Chris' Pinball Repair

Chesterfield, MO

12y 120K 9,996 46

One shots would be a good idea, but I don't know that either RD or Kohout implemented one shots.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact ... for board repairs
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#3 3 years ago

AMS

barakandl

nvram.weebly.com

12y 132K 10,418

Implementation of the gottlieb like one shot circuit is a good idea but I don't think it has been done by either replacement manufacturer. Consider adding a 1.25a slow blow fuse to every special solenoid. That way if the switch sticks closed the fuse should blow before the coil and/or driver transistor burns. Fuse holders can be added under the PF near the coil or there is a special solenoid saver that will put fuses inline with all six special solenoid circuits near the special solenoid return connector in the head.

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