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[Cap-Z-ro]

I've been following your work jesus...I hope you have it this time.

If not I'm sure that won't dampen your enthusiasm...your diligence and determination are second to none, and are to be admired.

Regards...

[nievesoliveras]

I've been following your work jesus...I hope you have it this time.

If not I'm sure that won't dampen your enthusiasm...your diligence and determination are second to none, and are to be admired.

Regards...

Thank you @capzero !

Jesus

[nievesoliveras]

@all

Following my studies here is another group of logic circuits.

Jesus

[nievesoliveras]

@all

I found that one of the problems with the circuit on this link:

http://www.overunity.com/index.php?topic=6362.msg171586#msg171586

is that the batteries are isolated from the joule thief circuit and the joule thief has no starting voltage.

I need the knowledge to overcome that small circuit detail.

Jesus

[Thaelin]

Welcome @electricme !
Thank you for your prompt response to my question.
The difference is that only the positive is going to be switched.

I made a circuit from my study of logic circuits.  Maybe my logic is not the right one but it is a starting point.

Jesus

   Hi Jesus:
   I quoted this message as it has the circuit in point. I hope it comes through with the post.
As I look at it, you are using NPN transistors and the emitter is tied to positive on the batteries.
This is reverse to how it would be. The emitter should be negative. The best rule of thumb is to
see movement from negative to positive and should always flow against the arrow direction. I have
used 3055's to switch both the negative and positive side, just have to be sure the emitter is towards
ground side.

thaelin