Joule Ringer!

[SkyWatcher123]

Hi folks, Hi magluvin, lol, no, sour cream and onion, hehe.
No i checked to see if the inner part was conductive, it is not and I removed the bottom metal cap, there was none on the top.
I finished rewinding with 30 awg wire and am using speaker wire for primary, just trying different wires and types, i think its 20 or 22 gauge, stranded of course.
I had enough single speaker wire piece for 25 turns, if this does not fire up, then i will add lynxsteam's trigger wire idea.
peace love light
tyson

[conradelektro]

A new 50 turn primary on my old 1000 turn (50 mm diameter) tower coil improved the output of the super Joule Ringer circuit.

Greetings, Conrad

[Lynxsteam]

That is a very similar result to what I am seeing.  I only have 30 turns of primary.  I will try 50 turns.
I tried my circuit with a 2N4401 transistor and it works well.  ConradElektro, what transistor are you using?

[conradelektro]

That is a very similar result to what I am seeing.  I only have 30 turns of primary.  I will try 50 turns.
I tried my circuit with a 2N4401 transistor and it works well.  ConradElektro, what transistor are you using?

@Lynxsteam: at the moment I use the MJE13007 transistor (because it takes a lot of abuse when testing strange coils). Others are using the 2N3055, and  I guess TIP3055 or TIP31 should work as well. I suspect the MJE13007 overheats to much in this type of circuit, so it probably is not the best choice.

The other day it came to my mind that this circuit will not fulfil the requirements of "radio regulations" because it emits a lot of stray emissions. I can light a blue LED with an Avramenco plug (no connection, just a piece of wire as an antenna and my body as virtual ground) up to 50 cm away from the coil. With 12 Volt operation the distance goes up to a meter. Some shielding will have to be done eventually. Using a ferrite core coil at e.g. 3 to   6 KHz will be not so critical in this respect, although the audible whine can be a nuisance.

Greetings, Conrad

[Lynxsteam]

I have always used the power transistors for this type of experimenting but recently learned a lot about small signal transistors from my work with wind turbine controllers.  Whereas with power transistors being fully on or off, small signal transistors are amplifiers and are non-linear in the way they follow voltage.  So by reducing voltage we can also reduce amperage draw.  They also don't saturate the way power transistors do.
I will try your 50 turns idea later today and see how the power draw/brightness is affected.
Also I want to get back to 6 volts so I can solar charge easier.