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Overunity Machines Forum



Joule Thief

Started by Pirate88179, November 20, 2008, 03:07:58 AM

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poynt99

#14605
January 07, 2011, 08:50:48 PM
Quote from: dasimpson on January 07, 2011, 08:44:24 PM
i have read that the internal resistance effects the freqancy the jt works out how would you go about finding the internal resistance of a battery

I think you may be going deeper than is necessary. What exactly are you trying to do that hasn't already been done on this thread?

.99
question everything, double check the facts, THEN decide your path...

Simple Cheap Low Power Oscillators V2.0
http://www.overunity.com/index.php?action=downloads;sa=view;down=248
Towards Realizing the TPU V1.4: http://www.overunity.com/index.php?action=downloads;sa=view;down=217
Capacitor Energy Transfer Experiments V1.0: http://www.overunity.com/index.php?action=downloads;sa=view;down=209

poynt99

#14606
January 07, 2011, 08:54:11 PM
Quote from: dasimpson on January 07, 2011, 08:50:07 PM
yeah i normaly use the ampage side of my meter the resion i ask is i have an mp3 player that runs off 1 aaa and i wonted to know the current draw but it wont turn on properly if i try and use the ampage reading on my meter

Try the 10A setting and jack. This will provide a lower resistance and drop less voltage. If you already are, then try another, better meter.

.99
question everything, double check the facts, THEN decide your path...

Simple Cheap Low Power Oscillators V2.0
http://www.overunity.com/index.php?action=downloads;sa=view;down=248
Towards Realizing the TPU V1.4: http://www.overunity.com/index.php?action=downloads;sa=view;down=217
Capacitor Energy Transfer Experiments V1.0: http://www.overunity.com/index.php?action=downloads;sa=view;down=209

dasimpson

#14607
January 07, 2011, 08:54:33 PM
Quote from: poynt99 on January 07, 2011, 08:50:48 PM
I think you may be going deeper than is necessary. What exactly are you trying to do that hasn't already been done on this thread?

.99
trying to work out what makes it work the best why freqancy matterys so much i maybe going to deap for my ability in maths and other things

dasimpson

#14608
January 07, 2011, 08:55:46 PM
Quote from: poynt99 on January 07, 2011, 08:54:11 PM
Try the 10A setting and jack. This will provide a lower resistance and drop less voltage. If you already are, then try another, better meter.

.99
lol i just did that as we speak as my new meter has the 10 amp range and it worked ty

kb24

#14609
January 08, 2011, 08:18:03 AM
May i ask what possible reason for my led not to light up when i connect my primary winding to base of transistor?
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