How To? wind coils

FastEddy · 20th July 2006, 08:10 PM

??

Anyone got links to hand made inductors??

(I have misplaced my ARRL Handbook.)

ostie01 · 20th July 2006, 08:19 PM

Hi, have a look at this

http://www.lalena.com/audio/calculator/inductor/
or
http://www.ee.surrey.ac.uk/Workshop/...air_coils.html
or
http://www.rennes.supelec.fr/ren/fi/...cs/bobine.html
or
http://www.circuitsage.com/inductor.html
or
http://www.deepfriedneon.com/tesla_f_calcspiral.html
or
http://www.lalena.com/audio/calculator/inductor/
or
http://home.new.rr.com/trumpetb/audio/chokejs.html

Good luck, Jeff

jneutron · 20th July 2006, 08:23 PM

http://www.pronine.ca/multind.htm

John

FastEddy · 20th July 2006, 08:27 PM

The one at http://home.new.rr.com/trumpetb/audio/chokejs.html really does the trick.

back to the bench ...

ostie01 · 20th July 2006, 08:49 PM

Happy this could help you. This is what this forum is all about, Jeff

deaf monkey · 21st July 2006, 08:18 AM

More basic coil info here:
http://www.colomar.com/Shavano/inductor_info.html

And some good advice on Brooks coils (where internal radius=height=width to give you the best efficiency)...here:
http://www.ee.surrey.ac.uk/Workshop/...air_coils.html

FastEddy · 21st July 2006, 03:07 PM

http://www.colomar.com/Shavano/inductor_info.html ... and http://www.colomar.com/Shavano/inductor_info.html ...

Super links, both.

Thanks so much guys, I really appreciate it.

KBK · 24th July 2006, 01:43 AM

I'm wondering if anyone knows a spot to get the right kind of copper or silver foil for winding your own foil inductors. I'll do a search right after this.... of course. Knowing where to get the right kind of plastic films, is a bonus too. Although, there is MUCH to be said for cheap masking tape!!!! Very benign, when it comes to interfering with the signal. If the right thickness of masking tape can be found (very thin!!!) it might work as well or better than a film of some sort. Difficult to say, unless one knows the DF of the film and the paper.

FastEddy · 24th July 2006, 01:59 AM

" ... When you see a CNC table, you get massive wood. ..."

Others of us prefer the CRC tables ....

FastEddy · 24th July 2006, 02:09 AM

I don't know what volrage oridinary masking tape will withstand ... my guess is somewhat less than 600 volts (DC, AC, spike, what have you ...)

I believe that laquer (paint) does a much better job and has been used for decades as the insulator of choice on otherwise bare metal conductors ... and when properly applied will withstand the 600 volts tests.

And, although silver may be an easy choice for you folks in the west Canada mining districts, us poor folk down in the lower 48 prefer copper, flat wound ... and I believe flat copper on rolls with one side plastic coated is available from a multitude of sources.

20th July 2006, 08:10 PM	#1
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	How To? wind coils ?? Anyone got links to hand made inductors?? (I have misplaced my ARRL Handbook.)

20th July 2006, 08:23 PM	#3
jneutron diyAudio Member Join Date: Jan 2004 Location: away	also: http://www.pronine.ca/multind.htm John

20th July 2006, 08:27 PM	#4
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	Got it, thanks! The one at http://home.new.rr.com/trumpetb/audio/chokejs.html really does the trick. back to the bench ...

21st July 2006, 03:07 PM	#7
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	Wow ... that's great! http://www.colomar.com/Shavano/inductor_info.html ... and http://www.colomar.com/Shavano/inductor_info.html ... Super links, both. Thanks so much guys, I really appreciate it.

24th July 2006, 01:43 AM	#8
KBK diyAudio Member Join Date: Dec 2003 Location: The Wilds Of Canada	This is as good a spot to pass air as any... I'm wondering if anyone knows a spot to get the right kind of copper or silver foil for winding your own foil inductors. I'll do a search right after this.... of course. Knowing where to get the right kind of plastic films, is a bonus too. Although, there is MUCH to be said for cheap masking tape!!!! Very benign, when it comes to interfering with the signal. If the right thickness of masking tape can be found (very thin!!!) it might work as well or better than a film of some sort. Difficult to say, unless one knows the DF of the film and the paper. __________________ "Never forget that only dead fish swim with the stream." -- Malcolm Muggeridge. "Truth cannot be brought down, rather the individual must make the effort to ascend to it." -- Jiddu Krishnamurti


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20th July 2006, 08:19 PM	#2
ostie01 diyAudio Member Join Date: Mar 2005 Location: quebec	Hi, have a look at this http://www.lalena.com/audio/calculator/inductor/ or http://www.ee.surrey.ac.uk/Workshop/...air_coils.html or http://www.rennes.supelec.fr/ren/fi/...cs/bobine.html or http://www.circuitsage.com/inductor.html or http://www.deepfriedneon.com/tesla_f_calcspiral.html or http://www.lalena.com/audio/calculator/inductor/ or http://home.new.rr.com/trumpetb/audio/chokejs.html Good luck, Jeff

20th July 2006, 08:49 PM	#5
ostie01 diyAudio Member Join Date: Mar 2005 Location: quebec	Happy this could help you. This is what this forum is all about, Jeff

21st July 2006, 08:18 AM	#6
deaf monkey diyAudio Member Join Date: Jun 2004 Location: Adelaide, Australia	More basic coil info here: http://www.colomar.com/Shavano/inductor_info.html And some good advice on Brooks coils (where internal radius=height=width to give you the best efficiency)...here: http://www.ee.surrey.ac.uk/Workshop/...air_coils.html

24th July 2006, 01:59 AM	#9
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	Massive for some ... " ... When you see a CNC table, you get massive wood. ..." Others of us prefer the CRC tables ....

24th July 2006, 02:09 AM	#10
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	masking tape? I don't know what volrage oridinary masking tape will withstand ... my guess is somewhat less than 600 volts (DC, AC, spike, what have you ...) I believe that laquer (paint) does a much better job and has been used for decades as the insulator of choice on otherwise bare metal conductors ... and when properly applied will withstand the 600 volts tests. And, although silver may be an easy choice for you folks in the west Canada mining districts, us poor folk down in the lower 48 prefer copper, flat wound ... and I believe flat copper on rolls with one side plastic coated is available from a multitude of sources.

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