Potential MPC74 Fukushima resistors GB for EUVL's FX5

[loek]

0R22
The Americas:
Horio (USA) 0R22 24x
Ichiban (USA) 0R22 20x
pchw (USA) 0R22 12x
flg (USA) 0R22 25x
Woody1911a1 (USA) 0R22 24x
kannan_s (USA) 0R22 16X
fitzfish (USA) 0R22 16x
alazira (USA) 0R22 16x
igwt (USA) 0R22 16x
P. Lambda (USA) 0R22 8x
necplusultra (Canada) 0R22 20x
ujamerstand (Canada) 0R22 20x

subtotal: 217

Europe:
Shaman (Greece - EU) 0R22 16x
Mravinsky (Spain) 0R22 16X
heinz1 (Germany) 0R22 8x
ramallo (Spain) 0R22 16x
CeeVee (Portugal) 0R22 16X
APK (UK) 0R22 8x
Ginum (Lithuania) 0R22 20x
Chalkandtalk (UK) 0R22 20x
Studley (UK) OR22 8x
smyslow (Austria) 0R22 16x
daanve (Netherlands) 0R22 16X
JBdV (Netherlands) 0R22 16X

subtotal: 176

Asia/Australia:
johnwmclean (Australia) 0R22 24x
wktk_smile (Japan) 0R22 8x
lloop9 (Singapore) 0R22 8x
leejh (South Korea) 0R22 16x
qusp (Australia) 0R22 20x
TS Lo (Hong Kong) 0R22 16x
rolandong (Philippines) 0R22 16x
pmchoong (Malaysia) 0R22 20x

subtotal: 128

running total 0R22 521


0R47
The Americas:
horio (USA) 0R47 24x
alazira (USA) 0R47 4x
clm811 (USA) 0R47 20x
P. Lambda (USA) 0R47 24x
Ichiban (USA) 0R47 20x
necplusultra (Canada) 0R47 20x
ujamerstand (Canada) 0R47 20x

subtotal: 132

Europe:
heinz1 (Germany) 0R47 8x
CeeVee (Portugal) 0R47 10x
APK (UK) 0R47 64x
Marra (UK)0R47 24x
Ginum (Lithuania) 0R47 20x
Chalkandtalk (UK) 0R47 20x
Mravinsky (Spain) 0R47 20X
smyslow (Austria) 0R47 16x
daanve (Netherlands) 0R47 16X
JBdV (Netherlands) 0R47 16X
loek (Netherlands) 0R47 24X
subtotal: 238

Asia/Australia:
qusp (Australia) 0R47 10x
TS Lo (Hong Kong) 0R47 16x
rolandong (Philippines)0R47 16x
johnwmclean (Australia) 0R47 24x

subtotal: 66

running total 0R47 436

 

[Horio]

A reminder to all:

If you are interested in signing up for the group buy, please add yourself to the GB spreadsheet (see post #98). There is no more need to update the giant list posted throughout this thread.

 

[AR2]

The Americas:
Horio (USA) 0R22 24x
Ichiban (USA) 0R22 20x
pchw (USA) 0R22 12x
flg (USA) 0R22 25x
Woody1911a1 (USA) 0R22 24x
kannan_s (USA) 0R22 16X
fitzfish (USA) 0R22 16x
alazira (USA) 0R22 16x
igwt (USA) 0R22 16x
P. Lambda (USA) 0R22 8x
necplusultra (Canada) 0R22 20x
ujamerstand (Canada) 0R22 20x
AR2 (USA) 18

subtotal: 235

Europe:
Shaman (Greece - EU) 0R22 16x
Mravinsky (Spain) 0R22 16X
heinz1 (Germany) 0R22 8x
ramallo (Spain) 0R22 16x
CeeVee (Portugal) 0R22 16X
APK (UK) 0R22 8x
Ginum (Lithuania) 0R22 20x
Chalkandtalk (UK) 0R22 20x
Studley (UK) OR22 8x
smyslow (Austria) 0R22 16x
daanve (Netherlands) 0R22 16X
JBdV (Netherlands) 0R22 16X

subtotal: 176

Asia/Australia:
johnwmclean (Australia) 0R22 24x
wktk_smile (Japan) 0R22 8x
lloop9 (Singapore) 0R22 8x
leejh (South Korea) 0R22 16x
qusp (Australia) 0R22 20x
TS Lo (Hong Kong) 0R22 16x
rolandong (Philippines) 0R22 16x
pmchoong (Malaysia) 0R22 20x

subtotal: 128

running total 0R22 539


0R47
The Americas:
horio (USA) 0R47 24x
alazira (USA) 0R47 4x
clm811 (USA) 0R47 20x
P. Lambda (USA) 0R47 24x
Ichiban (USA) 0R47 20x
necplusultra (Canada) 0R47 20x
ujamerstand (Canada) 0R47 20x
AR2 (USA) 18

subtotal: 150

Europe:
heinz1 (Germany) 0R47 8x
CeeVee (Portugal) 0R47 10x
APK (UK) 0R47 64x
Marra (UK)0R47 24x
Ginum (Lithuania) 0R47 20x
Chalkandtalk (UK) 0R47 20x
Mravinsky (Spain) 0R47 20X
smyslow (Austria) 0R47 16x
daanve (Netherlands) 0R47 16X
JBdV (Netherlands) 0R47 16X
loek (Netherlands) 0R47 24X
subtotal: 238

Asia/Australia:
qusp (Australia) 0R47 10x
TS Lo (Hong Kong) 0R47 16x
rolandong (Philippines)0R47 16x
johnwmclean (Australia) 0R47 24x

subtotal: 66

running total 0R47 454

 

[johnwmclean]

loek and AR2,

That list is no longer current,

If you are interested in signing up for the group buy, please add yourself to the GB spreadsheet (see post #98). There is no more need to update the giant list posted throughout this thread.

 

[loek]

signing up

I also did John, i wanted to be sure to join.
Thanks anyway.
Loek

 

[clm811]

Loose leads on Taiwan product

the EBay seller I mentioned ships from Taiwan. I've ordered, tested and used the resistors with no issues whatsoever -

I got 40 from ATseng on ebay @$0.50 and many of those "MPC74" resistors had loose leads!

I hope Davide will be getting us the good ones, esp at US$1.00 each (twice the cost)!

 

[Horio]

Well, $0.50 a resistor does not get you closely matched sets of 8 resistors, nor does it include a charitable donation to the Earthquake/Tsunami victims...

 

[EUVL]

Well said.


Patrick

 

[EUVL]

Nearly a thousand resistors in total.
I hope you are really going to build so many amps (250).




Patrick

 

[Horio]

It's going to be fun job matching all of these...

 

[EUVL]

well, I am very glad that you are having the fun this time.

I matched 1000 MOSFET once for a GB.
The first 100 was still fun......

But then you have the motivation for doing something good for the victims in Japan.
So my most sincere respect for that action.


Patrick

 

[Luke]

how do you match them, a multimeter wont be accurate enough will it?

 

[EUVL]

No. I wrote an article about how to match them and why.

http://www.diyaudio.com/forums/atta...anced-f5-question-power-resistor-matching.pdf


Patrick

.

 

[EUVL]

I should add that LT1083 is a better choice for making a 2A CCS than the LM317 mentioned in the article.


Patrick

 

[wktk_smile]

>But then you have the motivation for doing something good for the victims in Japan.
>So my most sincere respect for that action.

Although I live far from damaged/threatened area, I say thank
you guys.

 

[EUVL]

The people from Fukushima are the ones who are really suffering.
But I have no sympathy for Tepco, and not much for the Japanese government either.

Patrick

 

[EUVL]

Almost 1100 resistors !!

https://spreadsheets.google.com/ccc...lpJMUY0QkVvaDc5c0NwS2c&hl=en&authkey=CKyNoscF

Patrick

 

[pmchoong]

Hi

I've ordered 20pcs of 220R resistors and the matched pairs are in 8, which means I get 16 pcs of matched resistors, correct? And the balance of 4 is not matched, correct?

 

[Horio]

Hey pmchoong,

I'll update your order to two sets of 8 matched resistors (16 in total). As of right now, we are only offering the resistors in matched sets.

 

[pmchoong]

Hi Horio,

Thanks. Then I'll take 24pcs (3 sets of 8). Please update.