Joulethief SEC exciter and variants

[xee2]

Its about 4 inches

I do not understand how that can be. 1400 turns of #28 wire would have a length of over 17" so something is wrong. 28 AWG wire = 0.0126 inch diameter. So, 0.0126" x 1400 = 17.6" would be the coil length if there was no gap at all between turns.

[seth]

@altrez
Use the kind of pvc pipe you find in heating and plumbing stores - toilet outlet pipes are great! big diametre and very long! Im using about 450 turns of 0.5mm enamelled copper wire. For the primary ive got thick iron wire or thick copper wire, just two turns but i havent tried with more....you'll definitely get a CFL lit with one so large. I have a much thinner PVC pipe with less turns (outer diametre, 50mm!!!) that doesnt work at all even on higher voltages. Bigger is better.

@kooler

Nice video! I have a flyback lighting a cfl on 1AA (but in an emergency caharger), but its like the circuits you and xee were playing with on the other thread - Thanks And good luck!

[altrez]

I do not understand how that can be. 1400 turns of #28 wire would have a length of over 17" so something is wrong. 28 AWG wire = 0.0126 inch diameter. So, 0.0126" x 1400 = 17.6" would be the coil length if there was no gap at all between turns.

I do not understand it either. I must be off in my counting. I warped 300 turns CW and then measured the coil it was 1.4 inches long on a 3 1/2 Inch PVC pipe. The wire I am using might be 32 or 34 awg magnetic wire. I will post a pic tonight.

So What I am going to do is order some 28AWG wire and wrap it very slowly and have someone else count it as well.

I just assumed it was the Radio shack wire but it could of been something else. I have some much random pieces and parts laying around my lab that Human error is a big factor

You have been a big help! I tested this morning with 1 AA and was easily lighting LEDS from 8 inches away.

-Altrez

[xee2]

The wire I am using might be 32 or 34 awg magnetic wire.

It must be a very small diameter wire. That may be the problem since it will give you a very large resistance for the coil. Please measure the resistance of your coil for me.

[xee2]

@ kooler

A flyback without diodes, wow you find all the good stuff. Congratulations on getting Slayer's circuit to work with those small coils. I tried something similar and it was very hard to do. Joule thief circuit is much easier.

[totoalas]

Slayer UV?/Mosquito Zapper

Hi to all
Has anybody done a UV lamp water disinfection and or a mosquito zapper on a window aluminum screen with low power milliamp output
The lamp intensity is my worry since the UV radiation must penetrate to at least
half inch of exposure to drinking water
A jiffy puck col is a good candidate for the insect repellant but requires more power

Kooler can you ost yur schematic and type/odel of yur flyback as this is also a great circu it

thanks

totoalas

[altrez]

@altrez
Use the kind of pvc pipe you find in heating and plumbing stores - toilet outlet pipes are great! big diametre and very long! Im using about 450 turns of 0.5mm enamelled copper wire. For the primary ive got thick iron wire or thick copper wire, just two turns but i havent tried with more....you'll definitely get a CFL lit with one so large. I have a much thinner PVC pipe with less turns (outer diametre, 50mm!!!) that doesnt work at all even on higher voltages. Bigger is better.

Thank you for the idea I will be sure to give that a try.

[altrez]

It must be a very small diameter wire. That may be the problem since it will give you a very large resistance for the coil. Please measure the resistance of your coil for me.

Sure I will do that as soon as I get home this evening. Its around 19.2H for the inductance up from .618 on the old coil but I did not even think to check the resistance.

[slayer007]

In this video I added a coil to the collector of the transistor.And also added a indicator light with a led from the emitter to the base of the transistor.
Or replace the led with another coil.

I'm thinking this would also work very good with Dr Stifflers NIFL setup.

YouTube - Stiffler Slayer Exciter 2

[altrez]

It must be a very small diameter wire. That may be the problem since it will give you a very large resistance for the coil. Please measure the resistance of your coil for me.

Looks to be around 200k omh is that to much?

Thank you!

[altrez]

In this video I added a coil to the collector of the transistor.And also added a indicator light with a led from the emitter to the base of the transistor.
Or replace the led with another coil.

I'm thinking this would also work very good with Dr Stifflers NIFL setup.

YouTube - Stiffler Slayer Exciter 2

Nice work!

[xee2]

Looks to be around 200k omh is that to much?

Thank you!

Wow. That is really high. Maybe the wire is something other than copper. I am pretty sure that is your problem.

[altrez]

Wow. That is really high. Maybe the wire is something other than copper. I am pretty sure that is your problem.

Do you think 75 feet of 26-gauge wire will be ok to use for the coil? Will that be enough?

Thank you once again!

[xee2]

Do you think 75 feet of 26-gauge wire will be ok to use for the coil? Will that be enough?

Thank you once again!

My 1" diameter coil is 100 feet of wire. The 3" diameter coil is 700 feet of wire. The 1" diameter coil will light a 4 watt tube wirelessly using a cell phone charger (but just barely).

[altrez]

My 1" diameter coil is 100 feet of wire. The 3" diameter coil is 700 feet of wire. The 1" diameter coil will light a 4 watt tube wirelessly using a cell phone charger (but just barely).

Do you know of a good source online to get the wire?