Joule Thief

[MrMag]

IST,

Your not seeing anything special there. I have been using a scope for over 30 years, so I guess you need a little more than 3 years to realize this.

Tim

[jadaro2600]

I think the orange street lights are as efficient as an equivalent brightness LED...Led's don't buzz, either.  But some toroids do.

Heh, If I were designing them, they would operate off distal fields, they wouldn't even get hooked into the line, just have to be next to it, but I think that would be costly in terms of metal.


..I think the leads, are zinc plated iron / steel.

[MrMag]

Sorry, let me explain a little better.
A scope uses a CRT with a focused beam that is always on.
When you apply an input to the scope the circuits controlling the beam start to send signals.
It is an analog scope so the voltage applied and transferred to the beam winds up to the inputted pulse.
It is not a true indication of what is being inputted until the signal is fully converted in the circuitry.
Of course this windup period is very short but if the trace is set to a high time base, you will see exactly what you have shown.

[hazens1]

Have not had much time for expirementing lately, but I did take my 7-7-70-70 coil and try running it with 2 AAs instead of 1 for a total input of 2.5 volts and 115ma unloaded draw. The 2 Pickup coils rectified and serialized produced 500 volts with 500 ohm at the base of the TIP31 tranny. That's a 200:1 voltage ratio.

[innovation_station]

 a pic i circled the diffrent things YOU SEE IN IT....

the 2 vert boxes are the 1.4khz pulse ....   the   oval is a combining wave ....   a result of the 2 no?   and the big square the spikes.... 


if im wrong please do explain ....


ist!