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Re: hvguy-dot-com new flyback driver
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Fucian-at-aol-dot-com>
In a message dated 5/1/02 8:25:19 PM Eastern Daylight Time, tesla-at-pupman-dot-com
<< When I was a kid, I perfected a flyback circuit that worked with a single
2N3055. The key was putting an inductor (couple of mH?) directly from base
to emitter to suck the charge out of the base during turn off. I used 20
turns of secondary on the bottom rung of the flyback, and 2 turns of
tickler coil connected via a cap to the base. This was an oscillator. You
start the oscillation by hitting a button which spikes the base line, then
its free running. I used to be able to flash over and incinerate the
biggest flybacks from the 70's, with about 30V Vcc. This circuit was very
efficient since the L-C high pass character of the tickler circuit pulsed
the transistor with a very short width. Rob.
ps. I'd love to build one of these again, but those old flybacks are
no-where to be found except in landfills
Hmmm, sounds interesting.So an inductor would help out?What about using an
inductor with a mosfet?
Isnt it sad that those NICE flybacks are all under dirt?I REALLY wish I had
more. I have an ok one but it has many secondary outputs although its a good
3in diam by 1in disk.Maybe we ought to "mine" these landfills?LOL im
kidding!Any ideas where to get these?Surely they are stockpiled somewhere.