Potential MPC74 Fukushima resistors GB for EUVL's FX5 - Page 31

AndrewT · 04:53 PM

string your 0r47 resistors in series.
Pass ~200mAdc through the string.

Each resistor will show ~94mVdc on a 199.9mVdc DMM and dissipate ~20mW and thus stay very close to Ta.

You can pick out which resistors have the closest Vdrop.
If you have a couple, or more, of 1r0 1% resistors you can also mark on the 1% accuracy resistance on the 5% or 10% resistors.

If you have some close matches then push the current to 400mAdc and use the full resolution of your 2000count DMM.

heinz1 · 16th February 2012, 08:40 PM

Did you move recently?

This question came into my mind when I looked again at my spreadsheet containing the addresses I have collected approximately ten months ago.

As we are now hopefully approaching shipment, please ensure that the address we have is still correct and notify me or your local distributor of any possible changes.

TIA!

Horio · 16th February 2012, 08:50 PM

Heinz1, I think that is very wise for us to confirm everyone's address prior to shipment from the distributors. I am planning to contact all of the North American participants, and ask for their mailing address prior to shipment. Just to be safe I'd suggest that you and John do the same for the participants in your region.

Thanks,
Greg

heinz1 · 16th February 2012, 09:10 PM

OK, Greg, you convinced me. That's probably the more reliable option.

Horio · 16th February 2012, 09:53 PM

Thanks Heinz.

Horio · 21st February 2012, 05:33 PM

Quick update:

All of the Fuku resistors have been matched and grouped into sets of (8). I have packaged up the Fuku resistors along with the PRP/Mosfet/Keratherm parts for those who participated in that group buy as well.

I plan to ship the parts to the regional distributors tomorrow. For the North American participants, I will begin mailing out your parts this week.

Thanks again for everyone's patience.

Marra · 21st February 2012, 05:40 PM

Greg does this include the 0.47 resistors?

EUVL · 21st February 2012, 05:53 PM

Yes, we got them at long last.

Thanks to Greg, Fred, Lee, Davide, and all others involved for their endless effort to carry this forward.
I can assure you that matching 1000 power resistors is a mammoth effort.

Patrick

derwhalfisch · 21st February 2012, 11:06 PM

Champions

qusp · 22nd February 2012, 02:25 AM

excellent guys!

13th February 2012, 04:51 PM	#301
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	string your 0r47 resistors in series. Pass ~200mAdc through the string. Each resistor will show ~94mVdc on a 199.9mVdc DMM and dissipate ~20mW and thus stay very close to Ta. You can pick out which resistors have the closest Vdrop. If you have a couple, or more, of 1r0 1% resistors you can also mark on the 1% accuracy resistance on the 5% or 10% resistors. If you have some close matches then push the current to 400mAdc and use the full resolution of your 2000count DMM. Last edited by AndrewT; 13th February 2012 at 04:53 PM.

21st February 2012, 05:53 PM	#308
EUVL diyAudio Member Join Date: Oct 2003	Yes, we got them at long last. Thanks to Greg, Fred, Lee, Davide, and all others involved for their endless effort to carry this forward. I can assure you that matching 1000 power resistors is a mammoth effort. Patrick __________________ xen-audio.com

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16th February 2012, 08:40 PM	#302
heinz1 diyAudio Member Join Date: Feb 2008	Did you move recently? This question came into my mind when I looked again at my spreadsheet containing the addresses I have collected approximately ten months ago. As we are now hopefully approaching shipment, please ensure that the address we have is still correct and notify me or your local distributor of any possible changes. TIA!

16th February 2012, 08:50 PM	#303
Horio Newbie diyAudio Member Join Date: Mar 2010 Location: San Francisco	Heinz1, I think that is very wise for us to confirm everyone's address prior to shipment from the distributors. I am planning to contact all of the North American participants, and ask for their mailing address prior to shipment. Just to be safe I'd suggest that you and John do the same for the participants in your region. Thanks, Greg

16th February 2012, 09:10 PM	#304
heinz1 diyAudio Member Join Date: Feb 2008	OK, Greg, you convinced me. That's probably the more reliable option.

16th February 2012, 09:53 PM	#305
Horio Newbie diyAudio Member Join Date: Mar 2010 Location: San Francisco	Thanks Heinz.

21st February 2012, 05:33 PM	#306
Horio Newbie diyAudio Member Join Date: Mar 2010 Location: San Francisco	Quick update: All of the Fuku resistors have been matched and grouped into sets of (8). I have packaged up the Fuku resistors along with the PRP/Mosfet/Keratherm parts for those who participated in that group buy as well. I plan to ship the parts to the regional distributors tomorrow. For the North American participants, I will begin mailing out your parts this week. Thanks again for everyone's patience.

21st February 2012, 05:40 PM	#307
Marra diyAudio Member Join Date: Nov 2009 Location: Near Lincoln	Greg does this include the 0.47 resistors?

21st February 2012, 11:06 PM	#309
derwhalfisch diyAudio Member Join Date: Aug 2008	Champions

22nd February 2012, 02:25 AM	#310
qusp is choosing a less facetious title... diyAudio Member Join Date: Oct 2009 Location: Brisbane, Australia	excellent guys!