LED Heresy
“I meant to do that!” – Peewee Herman I’m pretty sure that’s how I connected the LED, with its long anode leg to the positive rail, and cathode to the collector of the NPN transistor of your already bassackwards setup Why not break all the rules
Besides, any load is taking the reverse HV power spikes, which may pass right through an LED no matter what direction the bias is. Yes, it was very bright, much more so than simply powering it with 3V. Looking at it directly burned an image into my retina which lasted The LED is still alive and kicking, but I didn’t leave the circuit powered up for very long. Incidentally, that incandescent, yellowy-orange tint is normal. I plucked a big, clear looking one from my Radio Shack grab bag O’ LEDs and that’s just the color it happens to give off.
Before it died? That’s pretty neat. Wonder if one could hold an ultra bright LED in its reversed, over-bright condition for long. That might be some kind of efficiency coup, potentially. Anyways, I think we ought to maintain an open mind as to how we expect different electrical components will react to radiant spikes. Keeping an inquiring eye on what actually happens, rather than presupposing. I’m still wondering when I’ll blow up an SLA battery with too much HV.
I like the two Stingos feeding one coil Looks good for a MOT.
Still gonna have to chew a bit on this one
I’m also considering combining a 555 timer with a Stingo switch, like some of the other circuits you have posted up on ImageShack.
- Godfrey
post note: Yes, the reverse bias may be the only reason the LED lit brightly, not sure.
Originally posted by Sucahyo
Besides, any load is taking the reverse HV power spikes, which may pass right through an LED no matter what direction the bias is. Yes, it was very bright, much more so than simply powering it with 3V. Looking at it directly burned an image into my retina which lasted The LED is still alive and kicking, but I didn’t leave the circuit powered up for very long. Incidentally, that incandescent, yellowy-orange tint is normal. I plucked a big, clear looking one from my Radio Shack grab bag O’ LEDs and that’s just the color it happens to give off.
Originally posted by Sucahyo
Originally posted by Sucahyo
Originally posted by Sucahyo
I’m also considering combining a 555 timer with a Stingo switch, like some of the other circuits you have posted up on ImageShack.
- Godfrey
post note: Yes, the reverse bias may be the only reason the LED lit brightly, not sure.
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