Recent content by MarkySparky

BLUEJETS I am not trying to make this for $. I am trying to get an old engine working again for my father's farm. The CDI module I built only works from a plug-in transformer. I want to just build one DC CDI. I don't want to buy it. I know it sounds stupid to everyone that reads this...

Does anyone have the 12VDC CDI module drawn up with a BOM and gerber files and the like? I want to make my own circuit board for an old hit and miss oil jack pump engine. I cant tell you how long I have been looking for this! Please advise. Thanks in advance. - Mark

I was wondering if it is mechanically possible to make (or buy) an auto-clutch system for a Fairbanks-Morse 208 12HP engine? Currently there is a hand wheel that you push in to engage the pump jack.

Ok here is the update from testing I blew up two power supplies. Aobao 2pcs High Voltage DC-DC Boost Converter 8V-32V to 45V-390V ZVS Step-up Booster Module Capacitor Charging Power Supply Module Adjustable Voltage Output https://a.co/d/fIrpS1i I really like these circuits but I goofed up...

Does anyone know of anyone that has made a scaled down version (working model) of a Fairbanks-Morse 208, 12HP? Or maybe a virtual model in 3D?

You just caught me before I went out the door… I got some good starting points and historical wisdom from Roy and then I spent a lot of time in circuit books and in the lab futzing around reverse engineering and then testing and then more testing and then I sent off to China to have a couple...

Update: I have a working prototype now and I’m going to install it today.

Cool. Wish I was there. I’m making progress on my CDI. I’m glad I found this forum.

Thank you very much. I look forward to learning more

Hello all. I own a Fairbanks Morse 208 Hit n Miss Natural gas engine 1943. 12 hp 6" single cylinder. 650lbs. And I want to make my own CDI for it. I have destructively analyzed the one that just failed and would love some help selecting components. Looking forward to meeting you all.

I have a natural gas hit and miss engine on my gas / oil well. It is a Fairbanks Morse 208 Hit n Miss Natural gas engine 1943. 12 hp 6" single cylinder. 650lbs. It has a magneto and a CDI system. When the CDI dies it costs $500 USD to replace the thing. It’s a potted black cube that I...