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Re: DC power
Original poster: "Chris Swinson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <exxos-at-cps-games.co.uk>
> Good for you - DC is fun to experiment with!
I'm glad someone else thinks Dc is a good thing to investigate!
>One suggestion. Do NOT charge
> your tank cap directly from your DC supply. This is very hard on the tank
> cap and the DC filter caps. Roughly half the charging energy gets
> dissipated in the resistance of the circuit, i.e. the wiring and the caps
> themselves. Adding resistors between the filter and tank cap reduces
> stress, but again, you end up wasting half the energy in that resistor.
Thats what I was doing to start with. the caps should be ok, I do understand
the stress involved.
> Instead, charge your tank cap through your primary, then discharge it to
> ground through your primary. This is much more efficient. Might as well
> put the charging energy into your coil instead of heating and stressing
swap tank and pri you mean ?
> As far as resonant charging, you only need 20 Henry or so to do the job,
> long as you keep the BPS above about 300 BPS. Below that, it will
> when the reactor saturates. A couple of MOT secondaries in series will
Yes higher BPS does help. I said in another post I tried a NST secondary
which worked. As It blew the diodes I might try AC again to make sure i've
not lost anything else in the process. more investigations are to come....