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Author Topic: less 20ns switching in a coil without transistors  (Read 875 times)

Offline giuseppe

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less 20ns switching in a coil without transistors
« on: February 01, 2020, 09:40:09 PM »
What type of  oscilante system  is possible to be used to create pulse signal /switching ( less 20ns) in a coil ?  old school
Without transistors or another electronic systems / NO silicon-based .

Free Energy | searching for free energy and discussing free energy


Offline Toolofcortex

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Re: less 20ns switching in a coil without transistors
« Reply #1 on: February 01, 2020, 09:41:37 PM »
Tube and mechanical rotationnal spark gap.

??


Offline Raycathode

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Re: less 20ns switching in a coil without transistors
« Reply #2 on: February 06, 2020, 10:48:35 PM »
Why make it hard, a commutator and stator and carbon brushes just collect the narrow pulses,

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Re: less 20ns switching in a coil without transistors
« Reply #2 on: February 06, 2020, 10:48:35 PM »
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Offline Toolofcortex

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Re: less 20ns switching in a coil without transistors
« Reply #3 on: February 06, 2020, 11:00:34 PM »
Its inefficient as you need a mechanical source.

How much energy you need to charhe the capacitor of a MOSFET and let flow?

what loss penalty? Even with thermal loss of MOSFET.


Offline Raycathode

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Re: less 20ns switching in a coil without transistors
« Reply #4 on: February 07, 2020, 03:40:42 AM »
Its inefficient as you need a mechanical source.

How much energy you need to charhe the capacitor of a MOSFET and let flow?

what loss penalty? Even with thermal loss of MOSFET.
Make up your mind you want mechanical or semiconductor ? if you use a PNP and an NPN you can trigger it on the knee and instantly discharge the cap, are you racing electrons rise time here ?

Free Energy | searching for free energy and discussing free energy

Re: less 20ns switching in a coil without transistors
« Reply #4 on: February 07, 2020, 03:40:42 AM »
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Offline Toolofcortex

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Re: less 20ns switching in a coil without transistors
« Reply #5 on: February 07, 2020, 05:33:42 AM »
You will not get nS pulses.

The contact time will be larger than that.

It will be in the uS.

It’s also less accurate and will degrade.

It was used back then when there was no alternative.

Offline Raycathode

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Re: less 20ns switching in a coil without transistors
« Reply #6 on: February 07, 2020, 07:40:04 AM »
is all you appear to need to be able to do is charge an HV cap over a short time and then 'bang' dump and discharge that energy into a coil that's what they say and it works in TV sets so it's just that discharge time.

Free Energy | searching for free energy and discussing free energy

Re: less 20ns switching in a coil without transistors
« Reply #6 on: February 07, 2020, 07:40:04 AM »
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Offline Toolofcortex

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Re: less 20ns switching in a coil without transistors
« Reply #7 on: February 07, 2020, 04:40:54 PM »
Ok I see what you mean...

Just charge the line let it flow at the peak points where air onizes and turns conductive.

Yeah that would work too.

It would not be a precise and accurate pulse all the time tho.




 

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