Please check my wiring diagram... - Page 2

eisenhower · 16th October 2006, 03:36 AM

Also, for the 2.4 mH inductor do I just buy a 2.5 mH and shorten it up or something?

v-bro · 16th October 2006, 11:29 AM

Yes, best is to buy a LCR multimeter and meassure while you're unwinding it.

eisenhower · 16th October 2006, 06:40 PM

Is 2.5 mH close enough? Don't inductors have range of +/- 5%?
I can't get an LC meter

BobEllis · 16th October 2006, 07:30 PM

I think you'd be lucky to buy an inductor with a 5% tolerance, most likely it's 10-20%. Your drivers are likely to be 10% off nominal spec, too. The 2.5 is probably close enough.

You can make an impedance bridge with an opamp, a couple of 9V batteries and and a pair of resistors in about 10 minutes.

http://www.arrl.org/qex/2005/Steber.pdf http://www.arrl.org/qexfiles/LMSprog.zip

16th October 2006, 11:29 AM	#12
v-bro diyAudio Member Join Date: May 2006	Yes, best is to buy a LCR multimeter and meassure while you're unwinding it. __________________ Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Grounding Check please (diagram included)	redrabbit	Solid State	10	15th October 2007 08:52 AM
Subwoofer Wiring Diagram	boris333	Subwoofers	10	4th October 2005 11:16 PM
I'm wiring my 4 channel 8 parallel LM4780 boards... check my wiring :)	Audiophilenoob	Chip Amps	9	16th August 2005 04:37 AM
can i use this wiring diagram	mitchell	Car Audio	3	23rd August 2004 08:50 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

16th October 2006, 03:36 AM	#11
eisenhower diyAudio Member Join Date: Sep 2006	Also, for the 2.4 mH inductor do I just buy a 2.5 mH and shorten it up or something?

16th October 2006, 06:40 PM	#13
eisenhower diyAudio Member Join Date: Sep 2006	Is 2.5 mH close enough? Don't inductors have range of +/- 5%? I can't get an LC meter

16th October 2006, 07:30 PM	#14
BobEllis diyAudio Member Join Date: Sep 2003 Location: Upstate NY	I think you'd be lucky to buy an inductor with a 5% tolerance, most likely it's 10-20%. Your drivers are likely to be 10% off nominal spec, too. The 2.5 is probably close enough. You can make an impedance bridge with an opamp, a couple of 9V batteries and and a pair of resistors in about 10 minutes. http://www.arrl.org/qex/2005/Steber.pdf http://www.arrl.org/qexfiles/LMSprog.zip

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)