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Author Topic: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....  (Read 181277 times)

Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #135 on: January 29, 2010, 04:36:21 PM »
I'm fixing to place some more parts orders, i'll be hard pressed to find a germanium transistor though.

I think my question was convoluted.  The idea is to reduce as much as possible the current coming from the battery.  I noticed, that occasionally, a battery will provide an greater than consistent voltage when initially connected, I think this could become usefull.

Have you ever connected a voltmeter ( to a battery ) and noticed that it spikes upon connect then finds a normal value?

Offline jeanna

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #136 on: January 30, 2010, 02:19:04 AM »
@jadaro,

I think that initial pulse which killed a lot of people was one of the reasons Tesla gave in the fight against dc. It is really very large in a big system.

And, Yes, I have.
 It happens fast and is hard to read, and the meter does not always catch it.

Gadgetmall has germanium transistors.

jeanna


Offline Pirate88179

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Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #139 on: January 30, 2010, 09:52:18 PM »
Yes! I recently ordered this transistor, only two of them though I'm not so sure that our wild tangential voltages are so safe for these types of transistors; it should be noted that the 2n128 is a PNP transistor

considering mosfets?:

On top of this, I would rather be testing with MOSFETS, I was planing to test this particular circuit use two enhancement mode power mosfets rather than two transistors, just to see what the results would be like, as it stands the device uses very little current...

- - - - - - -

Eliminating the current from base to emitter all together would thus lower the overall current usage, this is just common sense.  It makes more sense to use a MOSFET when the current consumption is near enough to the base-emitter leakage associated with turning it on in the first place.

I may wind up replacing the PNP transistor with a P-Channel enhancement mode mosfte and leaving the NPN transistor, as I can see the only place where current is really leaking through to ground ( about the transistors / semiconductors ) is through the PNP base-emitter ...  the oscillation are already voltage oriented pulse activated at this locate.

I have been warned about the sensitivity of the thin film glass metal oxide gate's sensitivity to electricity ( and hence their breakdowns ) .. I'll have to be extra careful with them in this case.

Offline crowclaw

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #140 on: January 31, 2010, 08:10:15 PM »

considering mosfets?:

On top of this, I would rather be testing with MOSFETS, I was planing to test this particular circuit use two enhancement mode power mosfets rather than two transistors, just to see what the results would be like, as it stands the device uses very little current...

- - - - - - -

Eliminating the current from base to emitter all together would thus lower the overall current usage, this is just common sense.  It makes more sense to use a MOSFET when the current consumption is near enough to the base-emitter leakage associated with turning it on in the first place.

I may wind up replacing the PNP transistor with a P-Channel enhancement mode mosfte and leaving the NPN transistor, as I can see the only place where current is really leaking through to ground ( about the transistors / semiconductors ) is through the PNP base-emitter ...  the oscillation are already voltage oriented pulse activated at this locate.

I have been warned about the sensitivity of the thin film glass metal oxide gate's sensitivity to electricity ( and hence their breakdowns ) .. I'll have to be extra careful with them in this case.

considering mosfets?:

On top of this, I would rather be testing with MOSFETS, I was planing to test this particular circuit use two enhancement mode power mosfets rather than two transistors, just to see what the results would be like, as it stands the device uses very little current...

- - - - - - -

Eliminating the current from base to emitter all together would thus lower the overall current usage, this is just common sense.  It makes more sense to use a MOSFET when the current consumption is near enough to the base-emitter leakage associated with turning it on in the first place.

I may wind up replacing the PNP transistor with a P-Channel enhancement mode mosfte and leaving the NPN transistor, as I can see the only place where current is really leaking through to ground ( about the transistors / semiconductors ) is through the PNP base-emitter ...  the oscillation are already voltage oriented pulse activated at this locate.

I have been warned about the sensitivity of the thin film glass metal oxide gate's sensitivity to electricity ( and hence their breakdowns ) .. I'll have to be extra careful with them in this case.
[/quote]
Hi Jadaro,

I go along with your idea with trying mosfet devices. I have tried a 2n7000 and it worked but the gate  voltage can be tricky to get them to work succesfully. Please keep us informed of your own findings using mosfets.
Kind Regards

Offline crowclaw

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #141 on: January 31, 2010, 08:14:19 PM »



Hi Jadaro,

I go along with your idea with trying mosfet devices. I have tried a 2n7000 and it worked but the gate  voltage can be tricky to get them to work succesfully. Please keep us informed of your own findings using mosfets.
Kind Regards

Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #142 on: January 31, 2010, 09:54:56 PM »
Hi Jadaro,

I go along with your idea with trying mosfet devices. I have tried a 2n7000 and it worked but the gate  voltage can be tricky to get them to work succesfully. Please keep us informed of your own findings using mosfets.
Kind Regards

I have that part ordered as well; ..I think that saturation times are different for mosfets than they are from transistors, this must be in large part to the fact that current is flowing through them, perhaps a strategically placed capacitor can give a greater yield.

The placements of transistors seems unusual.

This brings me back to my original post regarding the unusual behavior of the PNP transistor and my inability to take and accurate readings of its frequency characteristics.

Would it always appear 'on' because the PNP is simply opening the NPN collector-emitter pathway and the oscillating?

Is anyone else having readings which vary from the NPN?  I'm actually wondering why this circuit uses so little current.

- - - - -

In the future mosfet setups I plan to use an electrically isolated trigger coil, it should behave just like a transformer, the initial pulse should create a voltage boost along the primary winding as it is, perhaps I can use this to get the timing right on the PNP base / gate area.  I'll post my schematics soon, I'm just waiting on the mail to come at this point.

Offline tysb3

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #143 on: February 01, 2010, 04:32:49 AM »
@ jadaro2600

this is Brovin's kacher. low power silicon transistor works with lockup base. just need to touch piece of wire on base to start spikes on collector. base coil could be connected too.

Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #144 on: February 01, 2010, 05:04:30 AM »
@ jadaro2600

this is Brovin's kacher. low power silicon transistor works with lockup base. just need to touch piece of wire on base to start spikes on collector. base coil could be connected too.

I've been occupied lately, but I'll build that one too, looks interesting.

Offline sirmikey1

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #145 on: February 18, 2010, 09:07:36 AM »
Just a note, a heads up...
Davro Video, at 1:45 or so, he is creating SEC receivers which are also "repeaters", have their own trigger coils.  I think this is a real biggie, unlimited current and current magnification.

http://www.youtube.com/watch?v=ZanIc5nS78A

M

Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #146 on: February 24, 2010, 05:29:14 AM »
I noticed that the trigger coil version of this circuit includes an optional resistor at the base of the NPN transistor.

Has anyone got any recommendations for the value of the resistor VS the potential for voltage going through that path to the base?

How would I measure it without discontinuing the operation of the circuit.  ( having trouble determining this easily )

Offline sirmikey1

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #147 on: February 24, 2010, 01:23:41 PM »
Jadaro,

  You can use a variable 4meg pot or a string of resistors that you can jump around, to find highest voltage/resonance.  Gets hot if you dont. 

  Works well for KV with some coils, and not so well with others.  I added one NPN and get 1350v.   Might try Lidmotor's MPSA06 darlington NPN if needed.

Regards,
Mikey

Offline jadaro2600

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #148 on: February 24, 2010, 04:47:59 PM »
The circuit itself is a sort of Darlington setup.

I am referring to the placing a resistor at the base of the NPN transistor.

I believe that the CE resistance of the PNP transistor would be around 1 or 2k when the base is about 3M.  This essentially cuts the path current down significantly through there already going to the base of the NPN.

The only wastes that I notice are in the current drains from base to emitter on either.

Offline ElectricGoose

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Re: New Jewel Thief "Resonate LCR Circuit" Much less energy draw....
« Reply #149 on: February 25, 2010, 01:04:02 AM »
@ jonnydavro

Thanks for A your results. It is amazing that you can light the LEDs wirelessly so far away from the transmitter.

A new drawing is attached. I would like to replicate some of your experiments, but I do not have any large space to work in and I am afraid the high voltage fields may damage things like the TV and computer. Have you had any problems of that sort?


Hi Guys

New to this forum and just attempting some of the new JT variants.  Has anyone had success with a simplified 'SEC' type version such as was posted by Xee (but JohnnyDav design) however with really low voltage/amp draw rather than 5 volt input?
I'm looking for something that will run on the smell of an ozone vapor :-)

Thanks for your help

E-Goose