calculating windings for mH

Madmike2 · 2nd July 2005, 10:37 PM

Hi guys i searched and found useful links to how to calculate them but i dont have an Ai value for my bobbins so i can t figure it out

if someone could look at this photo of the bobbins ( diameter = 11mm ,height = 18 mm ) and give me a ball park figure on how many turns to get .6 mH and .3 mH i would appreciate it. I am jury rigging a winder now with a adjustable drill and some screw drivers. This is just to tide me over till solen stuff arrives.

Thanks i appreciate it.

Madmike2 · 3rd July 2005, 01:24 AM

oooops photo would be nice i guess. These are what i was going to wind them on .3 and .6 mH ..... apparently they have a value (the bobbins) but i dont know what it is or what the formula to calculate their value is. So again , if someone is extremely familiar with winding inductors and could tell me approx how many turns that dia and height with 20 guage wire will make those values i would love you for the rest of the day.

mwmkravchenko · 3rd July 2005, 02:40 AM

mwmkravchenko@hotmail.com

Mark

Madmike2 · 3rd July 2005, 02:46 AM

Awesome dude i just e-mailed you. i am sitting here looking at these bobbins and nothing open to go get a measuring meter and start winding and guessing

mwmkravchenko · 3rd July 2005, 02:55 AM

Tell me what you come up with

Mark

Madmike2 · 3rd July 2005, 03:05 AM

i dont understand what you mean ? Did you send me something ? because i didnt see it or get it if you did . Sorry.

mwmkravchenko · 3rd July 2005, 03:06 AM

I sent it again through gmail. You should have it in a minute or two.

Mark

Madmike2 · 3rd July 2005, 03:07 AM

Got an e-mail but nothing in it except your instructions

Edit. Ok thank you

Madmike2 · 3rd July 2005, 05:05 AM

i found an online java one that you just have to adjust outside diameter to approximate winding on a give inner diameter air core. Pretty sweet but damned annoying to find

http://www.oz.net/~coilgun/mark2/inductorsim.htm

Madmike2 · 3rd July 2005, 01:12 PM

Thank you anyway for the attempt Mark but nothing came through. No worry i found an online Java based one that seems to be geared towards idiots [me]

2nd July 2005, 10:37 PM	#1
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	calculating windings for mH Hi guys i searched and found useful links to how to calculate them but i dont have an Ai value for my bobbins so i can t figure it out if someone could look at this photo of the bobbins ( diameter = 11mm ,height = 18 mm ) and give me a ball park figure on how many turns to get .6 mH and .3 mH i would appreciate it. I am jury rigging a winder now with a adjustable drill and some screw drivers. This is just to tide me over till solen stuff arrives. Thanks i appreciate it. __________________ Persistence is better then intelligence. Unless persistence kills you.

3rd July 2005, 02:40 AM	#3
mwmkravchenko diyAudio Member Join Date: Jan 2002 Location: Perth Canada	If you want a small program that will work drop me a line mwmkravchenko@hotmail.com Mark __________________ Mark

3rd July 2005, 02:46 AM	#4
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	Awesome dude i just e-mailed you. i am sitting here looking at these bobbins and nothing open to go get a measuring meter and start winding and guessing __________________ Persistence is better then intelligence. Unless persistence kills you.

3rd July 2005, 02:55 AM	#5
mwmkravchenko diyAudio Member Join Date: Jan 2002 Location: Perth Canada	Check your mail Mike! Tell me what you come up with Mark __________________ Mark

3rd July 2005, 03:05 AM	#6
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	i dont understand what you mean ? Did you send me something ? because i didnt see it or get it if you did . Sorry. __________________ Persistence is better then intelligence. Unless persistence kills you.


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3rd July 2005, 03:06 AM	#7
mwmkravchenko diyAudio Member Join Date: Jan 2002 Location: Perth Canada	Hotmail sucks! I sent it again through gmail. You should have it in a minute or two. Mark __________________ Mark

3rd July 2005, 03:07 AM	#8
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	Got an e-mail but nothing in it except your instructions Edit. Ok thank you __________________ Persistence is better then intelligence. Unless persistence kills you.

3rd July 2005, 05:05 AM	#9
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	i found an online java one that you just have to adjust outside diameter to approximate winding on a give inner diameter air core. Pretty sweet but damned annoying to find http://www.oz.net/~coilgun/mark2/inductorsim.htm __________________ Persistence is better then intelligence. Unless persistence kills you.

3rd July 2005, 01:12 PM	#10
Madmike2 diyAudio Member Join Date: Apr 2005 Location: Toronto	Thank you anyway for the attempt Mark but nothing came through. No worry i found an online Java based one that seems to be geared towards idiots [me] __________________ Persistence is better then intelligence. Unless persistence kills you.

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