Sunday, February 21, 2021

1962 Bally Spinner revisited


So a while back I cured a recurring problem on a Bally Spinner...

I slowed down a stepper unit from resetting too fast using junk Bally stepper parts.

It can be seen here in a previous post.

This whole thing was a proof of concept really. I was curious if it would work. It does, but it's not flawless.

Since then I got a chinese copy of an Omron delay timer. All the junk parts are out.


Now the Omron timer delays the timer unit reset coil from energising by about 1 second during the game's reset cycle. Plenty of time for the ball dump motor and cam to do it's thing.

The delay timer is just shoehorned on to the control board. Secured by a zip tie. The modification is completely reversible if desired. It won't even leave a trace.



It works amazing!

Eventually I will get around to making a video of the reset sequence with the delay unit...

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