Category Archives: First Look

Quick demo of fully-modded Stern “Trident” pinball with new rules and sound

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After getting my Trident operational, I installed the BSOS system and have been working on fine-tuning the custom code and sounds. Here’s a short demo of what the new Arduino-based controller does to a standard Bally 18/35/Stern early solid state game.

Resources (courtesy Dick Hamill):

The code is all available on GitHub. It’s broken down into a base library and then machine-specific implementations. Rewriting other games requires a moderate knowledge of C/C++.
https://github.com/BallySternOS

Here’s a suggested parts list. If you bought all these things, you could create 6 of these boards. If you don’t need that many boards, you might find cheaper ways to source smaller quantities. I haven’t done any work to figure out if this is the cheapest way to source any of this stuff.

Cheap Arduino knockoff x6 ($20.99) – needs CH340 driver for programming / has to be ATmega328P
https://www.amazon.com/ATmega328P-Controller-Module-CH340G-Arduino/dp/B08NJNJCTX/

0.1″ 40-pin connector (40 pieces for $7.99)
https://www.amazon.com/Honbay-Single-Female-Connector-Arduino/dp/B06Y4S6G29/

32-pin Prototype PCB (2 pack for $9.99) – this won’t work for Alltek or MPU-200 because they have a 34-pin connector
https://www.amazon.com/Prototype-Snappable-Arduino-Electronics-Gold-Plated/dp/B081QYPHHP/

Wire ($7.99) – tons of wire
https://www.amazon.com/REXQualis-Breadboard-Assorted-Prototyping-Circuits/dp/B081H2JQRV/

74125 – ($1.95) https://www.jameco.com/z/74125-Major-Brands-IC-74125-Quad-Tri-State-Bus-Buffer_49373.html

Boot switch – x2 ($8.99) this switch will work for activating the Arduino board and toggling the speaker (see the writeup here to find out why: https://ballysternos.github.io/install.html)
https://www.amazon.com/gp/product/B07XMH174C/

OR

@RoyGBev has created a PCB and kit (doesn’t include the Arduino) here:
https://pinside.com/pinball/market/shops/1304-roygbev-pinball/04736-arduino-nano-adapter-for-classic-bally-stern

Prototyping A Brand New Mata Hari Ruleset!

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I’ve been working on a new project that I’m very excited about. There’s been a movement to create an inexpensive, non-destructive and simple way to mod early Bally/Stern solid state games and add more features. In this video, I demonstrate an early prototype of the system used to modify a Bally Mata Hari pinball machine to include new features such as a skill shot, modes and even a wizard mode.

Want to learn more about this project? Visit: https://github.com/BallySternOS

What happened to the Earthquaked Earthshaker pinball?

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Over the years, probably one of the most asked questions I’ve gotten from people is, “Whatever happened to that Earthshaker you were working on?”

People are referring to this video series: Williams Pinball Earthshaker Looks Like It was in an actual Earthquake!

I picked up this game nine years ago. Pulled it out of a filthy house where the game had sat for years, no legs, no glass, non-operational, in a house full of cats. The game looks like it has numerous things living in it, and the cabinet became a cat scratching post.

The more I looked at it, the more problems I found. The game had been monkeyed with in more ways than I’d seen with any other machine. Nonetheless, I managed to actually, finally get the game to boot up, but it was so horribly mangled in so many ways, it would take years to acquire the necessary parts at reasonable prices, so I stored the game and would pick up parts here and there over the years, hoping one day to restore the game.

Last year a friend inquired about the game and I realized, I didn’t have the time any time soon to tackle this project. I had so much going on I decided to sell it to a friend who I knew would invest the time needed to bring this treasure back. So I gave him all the parts I’d collected, including original cabinet artwork that I got from Gene Cunningham of Illinois Pinball.

The other day, my buddy Josh contacted me to let me know he had finished the restoration and if he could bring the game to the PinChurch to share with others. I jumped at the chance to see what progress had been made with the game, and share with everybody else.

Before I show you the AFTER, take a look at these two BEFORE videos:

You can find more details on the repairs and early restoration here.

Here’s a video of the restored Earthshaker – check it out – amazing work!

Here are some pictures:

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Pinball Stories #25: Super Minty Mata Hara Dream Pickup – PinballHelp.com

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You ever run across one of those pinball deals that turns out to be so sweet, you are afraid you’re going to get mugged getting the game into your vehicle? This is one of those deals. A really amazing find that I didn’t expect..

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