When you built your new 8" coil with the lower frequency, what did you use as a signal/function generator? All the generators I've found on the bay that go below 100kHz are a bit pricey and/or intended for audio applications.
Is there a special setting on the oscilloscope you're using?
As I sweep the frequencies, the waves expand and contract horizontally, not span vertically as shown here. Could it be because I'm sweeping too low (20kHz max)?
Another question, how many volts are you getting out of your signal generator? I'm only getting ~2.0V from my setup.
here's a design question for you: (have you observed or tried this?) would there be any noticeable performance difference if the direction of the primary winding is the same or opposite that of the secondary? ie. primary clockwise, secondary counter-clockwise; vice versa. Thanks.
@nlimchua I can tell you that the only thing that changes when you do this is the phase of the primary. It will have no effect on the resonance freq of primary or secondary, as long as all applicable variables are constant.
Any old cheap used signal generator on Ebay that can give an adjustable sine wave signal close to your coil's own resonant frequency will do.
Use JAVATC software (Google it) to find your coils freq. If it gave your res freq as 200khz for example, you would need a sig gen capable of giving 150khz to 250 khz approx'
Hi Folly - what setting do you have your dmm on? would be good if you can include that on your schematic as well. Otherwise, you did an impressive job. Great website as well!
Yes that's right. It's not like a true bench-top frequency counter that is accurate down to 1hz or whatever, but a lot of meters now have a limited Hz range. Mine only reads to 0.1 of a khz, or 100hz. But that is accurate enough for a Tesla coil, but it would not be for a lot of electronics work.
"54yrs" I bought a scope and by mistake a "Tenma" audio oscilator, will this suffice for a GENERATOR for testing coils ect? Thanks and excuse my ignorance, Ed
Thank you very much for your video I like it and your presentation is extremely condensed. I appreciate your time. We are in similar field
I'm progressing with OU
stivep1 1 month ago
If you have the second thought about magnetic generator then ---
You can trust the government and the big corporation
to block this option of Free Energy
Like they already doing with Magnetic Generators
Just go to Google, search for
Best Magnetic Generator
and Click the First Result
subhankar3716 2 months ago 2
When you built your new 8" coil with the lower frequency, what did you use as a signal/function generator? All the generators I've found on the bay that go below 100kHz are a bit pricey and/or intended for audio applications.
phalenor 7 months ago
@phalenor Sorry for the delay, it was just a fairly old one on Ebay. Not digital, but an old transistor job.
follytowers 6 months ago
Quick question.
Is there a special setting on the oscilloscope you're using?
As I sweep the frequencies, the waves expand and contract horizontally, not span vertically as shown here. Could it be because I'm sweeping too low (20kHz max)?
Another question, how many volts are you getting out of your signal generator? I'm only getting ~2.0V from my setup.
hbenders3356 1 year ago
here's a design question for you: (have you observed or tried this?) would there be any noticeable performance difference if the direction of the primary winding is the same or opposite that of the secondary? ie. primary clockwise, secondary counter-clockwise; vice versa. Thanks.
nlimchua 1 year ago
@nlimchua I can tell you that the only thing that changes when you do this is the phase of the primary. It will have no effect on the resonance freq of primary or secondary, as long as all applicable variables are constant.
crmadsen 1 year ago
Hi,
does the best power transfer occur from the primary to the seondary, when the 2 coils
are in resonance ?
Did you try some Kapanadze tests yet ?
Have a look at my youtube account for these videos.
Many thanks.
Regards, Stefan.
overunitydotcom 1 year ago
what signal generator and where can i get one please help
APtolik 1 year ago
Any old cheap used signal generator on Ebay that can give an adjustable sine wave signal close to your coil's own resonant frequency will do.
Use JAVATC software (Google it) to find your coils freq. If it gave your res freq as 200khz for example, you would need a sig gen capable of giving 150khz to 250 khz approx'
follytowers 1 year ago
is there away to down load the videos
itsu1999 2 years ago
is there away to down load the videos ??
itsu1999 2 years ago
Hi Folly - what setting do you have your dmm on? would be good if you can include that on your schematic as well. Otherwise, you did an impressive job. Great website as well!
nlimchua 2 years ago
I added a schematic onto the video. The meter is reading the signal generator's output (in effect the resonant freq) in khz.
follytowers 2 years ago
so, your dmm has a frequency counter and you have set this as such, correct? thx
nlimchua 2 years ago
Yes that's right. It's not like a true bench-top frequency counter that is accurate down to 1hz or whatever, but a lot of meters now have a limited Hz range. Mine only reads to 0.1 of a khz, or 100hz. But that is accurate enough for a Tesla coil, but it would not be for a lot of electronics work.
follytowers 2 years ago
Im sorry but what is a tesla coil used for? I have never seen anything like this.
LukesVids269 2 years ago
No practical use whatsoever. Just the fun of making raw energy.
follytowers 2 years ago
@follytowers What about the wireless transmission of electrical energy through the air as nikola tesla described? Oh, right, not really practical lol
zker666 1 year ago
I am a newbe to all this, including youtube.
"54yrs" I bought a scope and by mistake a "Tenma" audio oscilator, will this suffice for a GENERATOR for testing coils ect? Thanks and excuse my ignorance, Ed
milostreats 3 years ago
Very helpful, awesome! thank you
hardstyle905 3 years ago
I agree, Outstanding information, very easy to follow. Tunning my coils right now. thank you!!!
ElectroJoltman 3 years ago