Geeteoh is pronounced by saying the letters G T O.

My name is Jeff Klein. I design and sell circuit boards for early solid state Bally and now Stern pinball machines. I am trying to fill the void for replacements not offered by others and cool custom enhancements. I create boards that I want to use. If they work well, I offer it for sale to others.

I do this as a hobby. I have a regular full time day job. I source most of my parts from US electronics suppliers and build up all the boards myself by hand. My boards include a printed and bound manual that contains very detailed information about the board as well as schematics and a parts list. I test every board. I set them up for the intended machine and even set the volume mixing knobs. I design them to be easy to install with no setting changes. I want them to work in your machine upon first install and powering it up.

I have a YouTube channel where I show how my designs work. I also have some diagnostic videos as well as showing off some of my future designs.

https://www.youtube.com/@geeteoh1

I fully support my boards whether you originally purchased it from me or if you purchased a machine already containing my boards. Email me with any issues and I will get you going.

geeteoh@gmail.com