Search results

Im using a Hall sensor we already use on other kettering ignition circuits, and I believe switches the same as the KY-003 only in does not have the LED on board. Should still work. Here is a close up of the two inverters I made. And also one of me building the circuit on the actual schematic...

Hmmm yes I recall your attempts. As with yours, mine also works fine on the original pick up coil as the trigger. So all that has to occur is the square wave from the hall sensor be converted to to emulate the sine wave, my suspicion is the bluejets circuit is perhaps marginal on this square to...

If any one is interested, I made a third attempt at this circuit literally placing the components on the Bluejets schematic. Still no spark. I'm pretty confident I have the circuit correct. So leads me to suspect either the circuit has an error or not all 12V DC 4 pins CDI are the same. Any...

Hi Bluejets, a fellow Aussie here! I'm impressed with you working out how to use a Hall sensor on a 12 volt CDI. And I see from your youtube clip you 100% have it working like a charm. I would like to use this ignition on a 7 cylinder model radial I built. (Hall sensor in the dist cap with...

Very good! Is there a possible change to the PCB component list that would allow me run on 12 volts without the need for an external ballast resistor?

Thanks for the advice, I'll do all that. I'm working on the circuit board print now, going to etch the board using the laser printer transfer method. This will be perfect for this job. Once I have all the bits I'll post some pics to show others how I went. Also what are the ramifications...

Oh.... the heat sink if connected to the ear of the transistor will be VCC +? So the heat sink can NOT be mounted on an earthed chassis?

Got it! and thank you, I read in an earlier post in this thread, that there was a component change (a resistor) if one intends to run on 12 volts over 6 volts? Regarding heat , I intend to make a decent sized aluminum base pate that is bolted to the heavy transistor, the whole show will be...

David, This is how I interpret the tracks for both faces of the PCB. ALL seen from the TOP. Can you confirm I have the bottom face blue correct?

I think you may forget to attach your files? Here is what I interpret the bottom (blue) traces would look like if seen from the TOP through a transparent board with the red traces on the top side deleted for clarity. But Im not overly confident.

dsage, That is very kind of you, perfect! I went ahead and ordered back issue #34 MEBM. But in the mean time........ The PCB pdf you attached the top side traces, in red are understood but the bottom side of the board (blue traces) is partially obscured.Would you by any chance have the layout of...

Hi Guys, I'd like to give this design a shot. Is there a basic vero board layout or similar available?