Richard VIALLE's new theory about negative mass and overunity

[Khwartz]

Thanks, I will try.

[tim123]

Quick update: I've been learning about SWR meters, and vector-network analysers / antenna tuners... I'm slowly getting used to the concepts. I *almost* understand Smith charts... I only ever really get things when i can play with them...

I really want a VNA... I looked into making one myself. I found this excellent page on all the different products available - ordered by *how* they work:
- http://www.rigexpert.com/index?s=articles&f=aas

There are some that are quite affordable - i.e. under £200... Note that a decent SWR meter is at least £70 - and that gives much less info...

But the ones that look best are about £300. Not sure i can justify it...:
- Sark110 - https://sites.google.com/site/sark110va/home
- MiniVNA - http://miniradiosolutions.com/minivnapro

I'm considering making my own SWR meter with an arduino, and a directional coupler, and I'd really like to build my own VNA, but that is a big project...

Heatsink glue has arrived. Will complete the amp later. Not sure if my sig-gen will drive the MOSFET directly - so I may have to make a little pre-amp.


Tim

[wistiti]

Merci Khwartz!

I will surely replicate when i will have some spare time!

And for Jean-Louis Naudin? some news???

Merci encore pour ton temps!

[verpies]

If the continuous Out/In power ratio is really >2 then it should be possible to loop that power and achieve a self-runner within a month.

What he very "forgets" is that the RANGE of the COP is not of 1.2 or 1.3, where we could have some doubts, but of more than 2.0 (200%).
<snip>
HAS NOT TIME TO REALLY READ MY POSTS OR TRULY STUDY THE SUBJECT BEFORE SPEAKING.

Based on the above quote that's apparently not true.
Actually, Khwarts did not read my post above before stating that "he very forgets" - the very transgression he accuses me of.
I admit that I sometimes do not understand his posts due to grammatical errors, but at least I try to reply.  He does not even make that effort.

One who knows about oscilloscope traces and shape of the waves, will see by visual on the oscilloscope screen the ORDER OF MAGNITUDE of the integral of the curve, the measure of the "surface" of the shape of the wave.

I have a lot of experience in measuring HF power and the COP = ~2 does not impress me as a value that's beyond a measurement error.  I already listed 10 reasons how this can happen:

1) Waveform shapes
2) Crest factors
3) any DC components
4) Quantization errors of ADCs (two such errors get multiplied in power calculations before integration !).
5) The maximum frequency rating of the RMS or U*I multiplier.
6) The relationship between the sampling rate and the maximum frequency content of the measured signal.
7) Resistance and inductance of current sensing resistors or the frequency response of magnetic current probes,
8) The position of the voltage probe in relation to the current sensing element (before/after).
9) Stray capacitances
10) EMI

For information, the self loop have been already made in laboratory,

Really!?
Show us all this extraordinary feat.

BUT SURE HE HAS TIME FOR CRITICISM AND TAKING OTHERS FOR MORE IDIOTIC THAN THEY ARE... and he is still only interested in trying to discourage anyone to have interest in Richard's works (I don't know if he is even aware of his own intentions but this is very what I can perceive like outload from him; notice he is the inly one from who I could perceive anything like that.)

More personal remarks and Ad Hominem attacks.  Note, that this is a blatant violation of the forum's rules and against the common scientific etiquette.
Is Khwartz an amateur scientist/engineer or an amateur psychologist/telepath ?

[tim123]

I could use some advice... I seem to have 2 bad IRFP450 mosfets... I tried the amp - no joy. So I tried my spare - same.

I followed the instructions here for testing a mosfet, and they both failed the test...
http://www.utm.edu/staff/leeb/mostest.htm
http://www.edaboard.com/thread125626.html

Can anyone tell me if there's anything wrong with the above test? Or is there another test?

Maybe I just got sold some rubbish...

UPDATE: I found my DMM was only putting out 1.5v in diode test mode. I used the other - and it worked... So now I have to figure out why my sig-gen won't drive the amp... 

It has to be something to do with the negative vs. ground issue...

UPDATE 2: I think the solution is to drive the sig-gen off the same power supply - but I can't do that - it's PC driven etc... So...
I have an arduino, a 40MHz DDS board, and an LED module I can make a sig-gen from - and I can drive it from the same PS...

It's time i got into that sort of thing - so here's my reason...