dkalsi
08-08-2010, 01:48 PM
I am building a pair of 4355 Equivalent networks that require the following inductors:
2.4mH, 1.0mH, 0.47mH, 0.16mH
I had recently purchased an LCR meter on the cheap ($29) and thought I measure the inductors before I build the crossover. The following were the results:
The 2.4mh inductors measured = 2.44mH and 2.45mH
The 1.0mH inductors measured = 1.025mH and 1.026mH
The 0.47mH inductors measured = 0.487mH and 0.487mH
The 0.16mH inductors measured = 0.166mH and 0.168mH
My question is, should I bother unwinding the inductors to get exact values? Is the process just as simple as that (i.g., just unwind little and remeasure and keeping doing that until one gets exact values)?
See pictures below:
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0917.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0916.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0915.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0914.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0910.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0909.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0911.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0912.jpg
2.4mH, 1.0mH, 0.47mH, 0.16mH
I had recently purchased an LCR meter on the cheap ($29) and thought I measure the inductors before I build the crossover. The following were the results:
The 2.4mh inductors measured = 2.44mH and 2.45mH
The 1.0mH inductors measured = 1.025mH and 1.026mH
The 0.47mH inductors measured = 0.487mH and 0.487mH
The 0.16mH inductors measured = 0.166mH and 0.168mH
My question is, should I bother unwinding the inductors to get exact values? Is the process just as simple as that (i.g., just unwind little and remeasure and keeping doing that until one gets exact values)?
See pictures below:
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0917.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0916.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0915.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0914.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0910.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0909.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0911.jpg
http://i185.photobucket.com/albums/x205/dkalsi/DSC_0912.jpg