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Old 30th November 2012, 06:23 AM   #221
carolus is offline carolus  Belgium
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Quote:
Originally Posted by Bksabath View Post
Carolus
.... I be happy to swap same of yours hi BC337-40
with same of mine hi BC327-40
but probably there are many builders near you that can do the same ...
Thanks for your help.
What can we do practicaly.
I sent a PM.
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Old 30th November 2012, 07:47 AM   #222
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Praticaly
Option 1 get a few friends togheter and buy new batch of transistors
Mauser sell 1000 pieces of fairchilds for 30 (if luky you get Hfe needed as is just pot luck)

Option 2 find friend near you that can spare same

Option 3
Send me same of yours BC337-40 with Hi Hfe 540 and I will send you same BC327-40
with similar Hfe

As Joachim say only imput stage benefit from hi Hfe the rest can be done with less.

Did you PM?
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Old 2nd December 2012, 03:38 PM   #223
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Did anyone take a brief look at the OPA134 from the GB?
The lower one is a OPA2134 which is for sure genuine (TI sample), the upper one is from the GB. To me, this looks rather suspicious as the BB logo isn't even close to what it should be.
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Old 2nd December 2012, 03:42 PM   #224
JBdV is offline JBdV  Netherlands
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when Mouser or Digikey are the supplier they should be OK, however you are right the logo is a bit weird
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Old 2nd December 2012, 04:54 PM   #225
Birger is offline Birger  Germany
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the parts are original....they come from mouser...

Here an example from Schuro..

"]http://www.ebay.de/itm/150845625246?ru=http%3A%2F%2Fwww.ebay.de%2Fsch%2Fi .html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D15084562 5246%26_rdc%3D1[/URL]
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Old 2nd December 2012, 05:09 PM   #226
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Okay, perhaps they're fine. Time will tell.

Birger, good to have you here. I have some questions regarding the parts you delivered:

-I have some capacitors I don't know where to put: 4x100p 2,5%, 4x220p 2,5%, 4x47p 10%. What to do with those?
-The 4700F/16V caps don't fit - they are 5mm, the board ist for 7.5 mm grid.
-The 4700F and 6800F caps obviously aren't Panasonic as promised.
-I got four 2k trimmers that won't work: wrong footprint, knob not on top
-Got a ton of -25 bipolars, not -40. I know this has been addressed before.
-I am short one J109

Any idea how to fix this?
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Old 2nd December 2012, 10:03 PM   #227
lohk is offline lohk  Europe
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The 6800/4700 I have got are seemingly genuine Panasonic FR - they should be as good as the FM, but also my 4700s have only 5mm footprint.
But I have not found any opamp... both seem to be missing.
As I am throughly grateful for the effort of the group buy, it seems to me that many of us have to do parts shopping nevertheless.
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Old 2nd December 2012, 10:18 PM   #228
lohk is offline lohk  Europe
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the 2k trimpots are also not the right ones - all of them.
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Old 2nd December 2012, 10:31 PM   #229
lohk is offline lohk  Europe
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and the J-Fets are missing too - all of them

(me getting angry)
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Old 3rd December 2012, 12:07 AM   #230
lohk is offline lohk  Europe
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well not particularly angry but quite disappointed
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