For those that want to customize their game a bit, I just designed and made a few of these custom lamp covers. They are made from polished 18 gauge stainless steel and feature a unique design that mimics 1950's neon signs. The arrow runs along the top of the lamp cover to across the bottom of the text. Also, the back of the lamp features a surprise message from Rudy. I really like how this came out. I only have five left and not sure if I'll get a chance to make another set.

They can be ordered from my pinside shop: https://pinside.com/pinball/market/shops/1025-professor-pinball/01148-funhouse-custom-lamp-

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Sounds like a bad or missing blocking diode or missing.

They are usually on the switch. Black cylinder thing with a white strip. They are very easy to test to see if the one on the offending switch is shorted: https://pinballrehab.com/1-articles/solid-state-repair/tutorials/120-electronics-tutorial-transistors

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Great story and great deal. Congrats!

I have one of these left: https://pinside.com/pinball/market/shops/1025-professor-pinball/01386-funhouse-custom-lamp-error-on-backside

I don't think I'll be making more (or it will be a long while before I do.)

Got some time to do up Funhouse with a Pj dunno! Another setup that I really like.

Code (open source). https://github.com/elyons/professor_pinball_pinduino_sketches/tree/master/Funhouse-Ramp

Installation/build: https://docs.google.com/document/d/1e0kWf7s69OS23fKkJAoQRolKfgYZT9ljgUUAi473pjY/edit

Plug and play kit (if you don't want to make it yourself): https://pinside.com/pinball/market/shops/1025-professor-pinball/02684-pinduino-funhouse

Thanks for the post and that looks awesome! Great job getting that installed and the video is excellent.

Thanks for the order. I'll get this built and out to you as soon as I can. For anyone else interested: https://pinside.com/pinball/market/shops/1025-professor-pinball/02684-pinduino-funhouse-interactive-lighting-for-the-step-ramp

Pinduinos work with OCD boards as they are working off different connectors (Pinduino monitors J126 on the power driver board.)

OCD boards are amazing, but it is hard for me to put everything in every game that passes through.