Joule Thief

[jeanna]

If posting is difficult, trying to modify an error is worst.

Yes, the pulse motor is parallel to the 2200uf cap.

Thank you jesus.

Maybe this is why the forum seems sleepy today?
I have been trying to catch up on the energetic forum to see what imhotep's design was all about.

I sure would rather pulse it with a joule thief than a relay switch.
Noisy stuff, relays.
But really good work was happening over there last summer.

Anyway, thank you for finishing up my question.

I am wondering about the extra large size of the cap that seems to be making it work. According to tesla, the size of the cap can make no difference or a great deal of difference.
You seem to have found that in your case it makes a big difference.
Good work.
I think you cannot always just 'connect the dots" to get the correct picture.
I do think there is something else.
Maybe you are tapping into this something else too.
Lets hope so, eh?

jeanna

[xee2]

@ jeanna

This is something you may wish to try. With your scope you should be able to see the voltage at which the neon turns on. For low power circuits the a neon bulb can be used for a spark gap.

Once you have done this then you can modify the circuit to make a Tesla spark gap voltage multiplier by putting a transformer into the circuit.

Caution, this will produce high voltages - do not use capacitors with more than a few uF and make sure they are rated for at least 200 volts.



I do not have a scope so I have not done this, thus it is just theory. But it should work.

[xee2]

@ jeanna

If the frequency is too high for your scope, you can slow down the capacitor charging rate by adding a capacitor and resistor as follows.

PS - I tested this circuit but I do not have scope to see waveform.

frequency is about 10/(RC) where units are Hz, ohms, and Farads

EDIT: after playing with this for a while, it seems that the neon current is limited so it will not discharge higher capacitance capacitors quickly. I have also had problems getting consistent frequency results. But it still works some what as a spark gap.

[nievesoliveras]

@all

My pulse motor is still running at the same speed today.
I will proceed to disassemble the circuit and reassemble it and if it selfruns, I humbly will claim to have found the enormous simple detail that closes the loop on this kind of circuits.

Jesus

[altrez]

@all

My pulse motor is still running at the same speed today.
I will proceed to disassemble the circuit and reassemble it and if it selfruns, I humbly will claim to have found the enormous simple detail that closes the loop on this kind of circuits.

Jesus

That is great work Thank you for shearing with everyone it looks like all your hard work has paid off.

Take care!

-Altrez