On 2/13/23 2:58 AM, Joshua Thomas wrote:
Funny you mention this, I have a classic coil (can shape, oil filled) that I was thinking how to use in a coil. Interested in what others have done.
There's the GMHEICSLR (GM HEI coil spark length record) - running off 110VAC with a triac - More than 30cm sparks, as I recall.
On Mon, Feb 13, 2023 at 3:37 AM Lux, Jim <jim@xxxxxxxxxxxxx> wrote:Has anyone tried using the secondary of an auto ignition coil as a charging inductor for a small coil? They are 10-30 H (depending on who measured it, etc.) They've got the HV insulation. I was wondering about the current handling. Typically, they seem to have a DC resistance of some 10 kOhm or more, and if you're driving from, say, a NST with an RMS output current of 30 mA, that works out to about 9-10 Watts dissipation (because I've not got a spice model of the actual charging current, etc.) Or, alternately, any source for 10 H inductors that can hold off 20kV? Short of winding my own. 200 or so turns on a 4 cm diameter core with mu=5000 would do it. Have to wind in 20 turn chunks to keep the voltage rating, reasonable, but that's doable. _______________________________________________ Tesla mailing list -- tcml@xxxxxxxxxxxxxxx To unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx
_______________________________________________ Tesla mailing list -- tcml@xxxxxxxxxxxxxxx To unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx