The anomalous kicks

[Loki67671]

EM,
A quick schematic please. What device do you have in there? Is that coil connected Collector to Base if BJT / Source to Gate if FET? ................Loki........................

Go have a look here and see if there is anything of interest.
http://www.math.uio.no/~karstent/waves/index_en.html

[gyulasun]

Hi,

The spikes shown on the scope remembers me pulse shapes from a blocking oscillator.

See for instance this link but there are many others:
http://www.tpub.com/neets/book9/36e.htm

Regards
Gyula

[giantkiller]

@EMD,
Tnx. Better pic! Just for the total clarity for all.
The electronics would definately fit inside a TPU.

[Mannix]

Em,

Looks interesting, have you a different cro to try?

My latest measurments mean that instrument influence may be a factor. Digital devices can give some strange effects..look foward to your experiment. bearing fruit.

lindsay

[Rosphere]

EMdevices,

Of the four wires from the coil I see:

1. The far-right coil-wire goes to the corner hole sharing the battery ground and LED ground?
2. The center-right coil-wire goes to the 5th hole from the corner sharing the left MOSFET pin?
3. The center-left coil-wire goes to the 3rd hole from the corner sharing the right MOSFET pin and battery power and LED plus?
4. The far-left coil-wire goes to the 4th hole from the corner sharing the center MOSFET pin and scope plus?

I almost forgot to ask, what is the continuity of the coil wires WRT the names/connections used above; is the far-right and far-left wire the same wire?

Is anything wrong or missing from this interpretation?


I made a replication.  I tried several coil and LED connectivity patterns.  I am not seeing anything but initial spikes, then nothing.

Please see my photos and let me know if something is wrong.


EDIT: I am pulling my replication images from this reply.  I have it wired incorrectly.  Thank you for posting the circuit on reply one, EMdevices.