Fastron Inductor Group Buy for JG Filter Buffer - Page 5 - diyAudio
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Old 11th August 2012, 11:38 AM   #41
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OK, the PCB group buy has closed - So I'll leave this one open til next Sunday week, 19th August.



Fran
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Old 14th August 2012, 08:07 PM   #42
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Standing now at 124 inductors and 51 kits......



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Old 15th August 2012, 02:15 AM   #43
EUVL is offline EUVL  Europe
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Fran,

Did you received my recent email (a day or two before) ?


Thanks,
Patrick
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Old 15th August 2012, 08:37 AM   #44
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Hi Patrick,


I got the mail - apologies for not replying sooner,

That will be no problem,


Fran
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Old 15th August 2012, 10:20 PM   #45
GaryB is offline GaryB  United States
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Default a datapoint on inductor matching

Here's a quick datapoint on the ease of matching the Fastron inductors. I ordered an LC-100S inductance meter off of ebay for about $25 - a good value for the dollar. I'd previously ordered 4 Fastron inductors from Mouser for a JG style buffer. The meter showed up today and I did a quick measurement of the 4 inductors. Perhaps I got lucky but there were 2 good matched pairs in the 4 inductors that I was sent. One pair was 18mH +-0.02 while the second pair was 17.71mH +- 0.02. Since the chokes are only spec'd at 5% tolerance, both values fall within spec. The matching of the inductors seems very good even though there is some drift in the mean value.
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Old 15th August 2012, 11:43 PM   #46
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Thanks for that information Gary, very encouraging indeed. It means we won't have to worry too much about big surplus being needed to make the matches.


Fran
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Old 15th August 2012, 11:49 PM   #47
pchw is online now pchw  United States
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As in the main thread, my cheap LCR meter had 18.8, 18.9, 19.0, 19.5 mH from my 4 samples. Not too bad, one pair is within 0.6% and the other pair is within 2.7% of the peer, not bad indeed.
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Old 19th August 2012, 06:06 PM   #48
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Inductor/Parts kit group buy closes tonight!!! See the link in my sig line....


Fran
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Old 19th August 2012, 06:29 PM   #49
pchw is online now pchw  United States
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Hi Fran,

Please PM or email (via the forum) your email address. Once you close the GB, I will change the permission to you as the primary person who can edit the spreadsheet.

Thanks!!
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Old 20th August 2012, 12:05 PM   #50
EUVL is offline EUVL  Europe
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Fran,

kindly check email of today.


Many thanks,
Patrick
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