THE RANT ROOM

[v8karlo]

I will try to make the coil, but with lower ratio and higher frequency,

I am not to much motivated to wound 2 x 200 turns and lose to much time for it.

[lancaIV]

Lanca,...You are writing supporting claims here from persons not writing here.
with no permission to do so or citations for reference and perspective ?


once again your contribution is  clear as mud ....... [not the first time either..
flaming a fire that burns all... and supports no result ...conclusively ?
last time you did this it was also clear as Mud...with much fighting as you disappeared ?

I do not understand what you want to tell me :


" ..... You are writing supporting claims here from persons not writing here.with no permission to do so or citations for reference and perspective ? ...."


I am not here in the forum to support people but I am here to support experiment/work success and progress ! Physical and technical !


Many descriptions here are questionable,I try - at first for myself- to understand statements and if not I ask or give my impression about foreign people their standpoints !
And try to be Academies of Sciences their level near and DIY-textbooks and not telling "science fictions and possible science fakes" !











// Note to AG on interstellar travel suppression by horrible US gov't [and obviously others too]I apologize for all atrocities globally by all of our gov'ts....as  well any football[sports] or religious atrocities...oh also 5 G or anything else you care to pin on any particular member here...[guilt by geography ...? that too...]

our burdens are tuff to carry at times...as if we did not have enuff to sort out here...

[lancaIV]

Hello Gyula,
https://www.youtube.com/watch?v=pKFo4dOW4UU  Just a single DC Pulse, 10% Duty Cycle of 3000 Cycles per Second. = 90% "Ohms law"  off


Peak 17 Volt or average 17 Volt, peak 0,7 Ampere or average 0,7 Ampere ?!


Yes,here is an open " numbers kind and quality" question and Mister Sykes probably gives answer,included "duty cycle" effect  !






Sincerely


OCWL

[FriskyFritz]

Hi lancaIV,
I think what I quoted from you above is a correct translation and if you check EMJunkie video 7  at video time between 30:30 to 31:30, you can see a normal filament bulb I attached snapshots of.  It is not a halogen type and must have the usual Tungsten filament. Here is a link on such lamps which includes halogen ones too and a bakelite globe holder as seen in the snapshot.
If this is correct and EMJ perhaps confirms this, then the voltage - current characteristic of such Tungsten lamps is indeed nonlinear i.e. the resistance is nonlinear too,  increasing with increasing voltage and current. The nonlinearity (as also included in the above translation) is caused by the effects of high temperature on the metal filament wire of the globe.  The higher the filament temperature (due to the higher voltage and current), the higher the hot resistance becomes.

This means that bistander's discepancy question remains valid:  when such globe is fed at 17V and 0.7A, its instanteneous resistance cannot be as low as Ohm's law calculates it (24.3 Ohm), while its instanteneous resistance at 12V and 0.3A calculates to be 40 Ohm.  The temperature of the filament should be much higher at 17V than at 12V, so the resistance at 17V should be higher than 40 Ohm,   ok?
This also needs clarification from EMJunkie. 

Gyula

Are you brainless? You know nothing! Pick holes in others when you don't know. You are stupid Dumme Person. Siehe eine gerade linie?
Fritz

[lancaIV]

I stand corrected. Tungsten is normally used for bulb filaments. Its coefficient is 10 times that of nichrome. But still, at higher voltage and current, it should show increased resistance.
bi

Hello bistander
many applications from a japaneses inventor named Dr.med Kazumi Masaki (R.I,P.)


https://worldwide.espacenet.com/searchResults?submitted=true&locale=en_EP&DB=EPODOC&ST=advanced&TI=&AB=&PN=&AP=&PR=&PD=&PA=ken&IN=kazumi+masaki&CPC=&IC=&Submit=Search


With/-out diode use, energy savings,  ....