[B]PRP resistor group buy for the EUVL F5X build[/B] - Page 5 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 24th October 2011, 03:39 PM   #41
pchw is offline pchw  United States
diyAudio Member
 
Join Date: Apr 2006
Location: Fremont, California
Quote:
Originally Posted by NicMac View Post
Amazing Fred!
You already matched the last set of resistors that arrived only a few days ago?
Great work
Cheers,
Nic
I suppose you can guess what was my weekend entertainment. The last 33R was finished measurement at 3:30am Sunday PST
__________________
- Fred -
  Reply With Quote
Old 24th October 2011, 04:04 PM   #42
diyAudio Member
 
Join Date: Feb 2010
Location: Dallas Fort Worth area, Texas
Great work Fred!
  Reply With Quote
Old 24th October 2011, 05:43 PM   #43
pchw is offline pchw  United States
diyAudio Member
 
Join Date: Apr 2006
Location: Fremont, California
Default What are in the bag?

Before I forget, I better describe what are in the bags

For those who purchase 2 sets:
- there is one large bag for each person, the person's diyaudio id is on it.
- inside the large bag, there are a few smaller bags:
* One is labeled Assorted which contains 4 matched 220R's, 20 x 1K,
8 x 47R, 8 x 1.5K, 4 x 100K, 2 x 10R. Same values are wrapped together.
* 3 bags labeled 33.X, each bag contains one set of 8 matched 33R
resisters. You will be using 1 from each bag and parallel 3 of
them for each 11R location in the schematic.
* 4 bags labeled 220.X, each bag contains one set of 8 matched 220R
feedback resisters. You will be using 1 from each bag and parallel 4 of
them for each 55R location in the schematic.

For those who purchase 4 and 5 sets:
- there is 2 large bags for each person, the person's diyaudio id is on it.
- inside one large bag, there are a few smaller bags that contain the must
be matched resistors:
* 3 bags labeled 33.X, each bag contains one set of 16 or 20 matched 33R
resisters. You will be using 1 from each bag and parallel 3 of
them for each 11R location in the schematic.
* 4 bags labeled 220.X, each bag contains one set of 16 or 20 matched
220R feedback resisters. You will be using 1 from each bag and parallel 4
of them for each 55R location in the schematic.
Nic, your 220R's are in bag of 12 and bag of 8 as I was too lazy to rebag
them, but they are totally matched.
- inside the second large bag, there are:
* 1 assorted bag that contains 8 or 10 matched 220R's, 4 or 5 x 10R's,
8 or 10 x 100K's. Same types are wrapped except the 220's.
* 1 bag of 16 or 20 x 1.5K
* 1 bag of 16 or 20 x 47R
* 1 bag of 40 or 50 x 1K

DO NOT pay too much attention to the .X value. This is just the reading from my Fluke. I am pretty sure it is not 100% accurate All it matters is the same readings to designate as matched.

Thanks!!
__________________
- Fred -

Last edited by pchw; 24th October 2011 at 05:44 PM. Reason: Fixed some typos.
  Reply With Quote
Old 29th October 2011, 01:16 AM   #44
pchw is offline pchw  United States
diyAudio Member
 
Join Date: Apr 2006
Location: Fremont, California
For those who are in the PRP/Fuku GB AND are also in my other 2 GB's and are not in USA:
- 2SK3897/2SJ618, Keratherm Pads, see this spreadsheet.
- 2SK2013/2SJ313, see this spreadsheet.

You are qualified to ship these items along with the PRP and Fuku. I sent some PM's in the last few days to remind this option but didn't get all response. I am gong to finish up match the 2SK2013/2SJ313 this weekend and will calculate the total of your batch and request payment.

I can accommodate however you want to ship your items, but please let me know. I will great appreciate if you tell me your shipping preference (direct or with PRP/Fuku). Either spreadsheet has my email address next to my id. You can email me using that email address (my PM inbox is quite full).

Thanks!!
__________________
- Fred -
  Reply With Quote
Old 29th October 2011, 01:38 AM   #45
diyAudio Member
 
Join Date: Oct 2009
Fred,

I missed the Keratherm Pads GB. Is this closed now?

Cheers
John
  Reply With Quote
Old 29th October 2011, 02:15 AM   #46
pchw is offline pchw  United States
diyAudio Member
 
Join Date: Apr 2006
Location: Fremont, California
Hi John,

I ordered 34 extra T0-247-4 and a lot of TO-220. Let me know how many do you want, and I will add to the spreadsheet.

Thanks!!
__________________
- Fred -
  Reply With Quote
Old 29th October 2011, 06:28 AM   #47
diyAudio Member
 
Join Date: Oct 2009
Many thanks Fred,

Just to double check is this quantity sufficient for a balanced F5X? I assume 12 x TO247-2 and 28 x TO220-4 going from the spreadsheet.

Cheers
John

Last edited by johnwmclean; 29th October 2011 at 06:48 AM.
  Reply With Quote
Old 29th October 2011, 06:33 AM   #48
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
> Just to double check is this quantity sufficient for a balanced F5X?

For each channel F5X, you need

4x Keratherm Red TO247-2 for the main amp
2x Keratherm Red TO247-2 for the regulator
8 X Keratherm Red TO220-4 for the rectifier diodes

If I am not totally forgetful (I am occasionally these days) that's all you need.


Patrick
  Reply With Quote
Old 29th October 2011, 06:48 AM   #49
diyAudio Member
 
Join Date: Oct 2009
Thanks Patrick,

Fred,

This is my order;
12 X Keratherm Red TO247-2.
14 X Keratherm Red TO220-4.

Cheers
John
  Reply With Quote
Old 29th October 2011, 06:53 AM   #50
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
I think you meant :

12 X Keratherm Red TO247-2.
16 X Keratherm Red TO220-4.

And I would suggest you order 25% extra, as they are fragile.
You might have to replace them if you for some reason have to unscrew your devices from the heatsinks.
(i.e. only good for one time if you are unlucky)


Patrick
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
F5X -- the EUVL Approach EUVL Pass Labs 856 10th June 2014 10:26 PM
Potential Other Group Buys related to EUVLs F5X heinz1 Group Buys 456 2nd March 2014 01:16 PM
Potential EUVL F5X designed case user distribution check pchw Group Buys 1004 27th February 2013 03:32 PM
Please M. Charles Hansen PRP resistor maxpou Solid State 1 30th January 2008 01:51 AM


New To Site? Need Help?

All times are GMT. The time now is 07:04 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2