gr8flyer55

Jake,I'm trying to post a revision of the CDI HV board schematic which should be used in the kit version. It's a revision of what Nyemi posted from RCCDI RC Ignition. I think it finally worked. I built 10 more today, tested and all spark great. I also tested the kill feature on the timer board with a servo operated switch, no RFI interferrence, even using an old 72 MHz. radio ! I used the throttle servo with a micro lever switch, and worked perfect.

Rob, this is the circuit you'll be building and testing with the rest of us. I included a few of the kits in your box.

Seems Murphy's law prevails! Got ahead of myself yesterday and uploaded a picture before I checked it out! Disregard the photo on the left! Use the one on the right which has an added resistor, 680 ohm to the signal coupling to the SCR. Sorry to confuse everyone again..Maybe this one is correct. Let me know if I made any errors, since we want this to be what we are all going to be using.


John