Hi all,
I am trying to locate the original circuit diagram of Jons opensource cdi .
Any links do not work and the gompy.net links are blocked by my malwarebytes antivirus.
I did build a version of this CDI at least ten years ago but lost the schematic and am trying to re-create it.
Any help would be most appreciated.
Rich

Many thanks for that, the PCB layout is a bonus. However I need the HV schematic and coil data.
Can you help on this too?
You help is much appreciated.
Rich

Here is PDF copys of the pages from my old site..
I lost inerest a long time ago...

Many thanks!
That is exactly as I remembered it!
Much appreciated.
Rich

I have wound two toroids and one E-core and they all work in the circuit with varying frequency of oscillation, from 50kHz to 80 kHz.
However the output is not sinusoidal, there is like a ringing on one side of the waveform. I can get 200v when rectified.
I have tried to attach a photo from the oscilloscope but this site won't let me attach it until I have posted ten times!!
Any ideas what's wrong despite no photo?
Thanks