carlton

Any ideas on construction of a scope probe to view an automotive ingition secondary waveform? It runs any where from 12kv to 80kv depending on ignition type. The max voltage my scope can handle is 800v p-p or 400v (dc+ac peak). The probe must let the spark pulse through without loading it down. So maybe an inductive pickup that the scope probe can connect to.

Thanks audioguru for the welcome and you got me thinking. I thought back to the old days when kids would skew the tv picture and it got that purple dot on it. So I used the electric razor ( you know the old buzzing kind not rotary ones) to degaussed it and the trace righted itself when they shipped it me they must have placed it near something magnetic next time I will make sure they place the do not expose to magentisim sticker on it.

No speakers or any magnets of any kind near it . Also the trace widens as it goes left to right, with a straight line accrossed the midle it has a slight middle upward arc to it that is after setting the trace rotation.

Anyone know why the verticle trace line would rise and fall at an angle instead of following the grid marks just got the scope saw the scewed line doing the calibration and probe compensate. It is a kenwood 4125