Potential Other Group Buys related to EUVLs F5X - Page 3 - 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 23rd May 2011, 12:40 PM   #21
diyAudio Member
 
pmchoong's Avatar
 
Join Date: Jan 2008
Location: Kuala Lumpur
Amended list:

SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)

qusp
pmchoong (Malaysia)

Toroidy (Europe)

samoloko, mravinsky, heinz1, CeeVee, NicMac

Antek (USA)

alazira

to be seen whether there is enough interest
  Reply With Quote
Old 25th May 2011, 12:24 PM   #22
APK is offline APK  United Kingdom
diyAudio Member
 
Join Date: Jan 2005
Location: NW
Amended list:

SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)

qusp
pmchoong (Malaysia)

Toroidy (Europe)

samoloko, mravinsky, heinz1, CeeVee, NicMac, APK

Antek (USA)

alazira

to be seen whether there is enough interest
  Reply With Quote
Old 26th May 2011, 04:36 AM   #23
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
Default PRP 9372 Audio Resistors

So I have a small piece of good news for you.

If you have seen my original F5X boards, you would know that I used PRP9372 resistors (1/4W and 1W) for the main amplifier (except for the current limiting circuit), and also for the regulator RC filter.

For those who have read Ed Simon's article in Linear Audio Volume 1 on resistor non-linearity tests, you will know that PRP has one of the best performance amongst those tested, at very affordable costs.

Fitzfish is currently ordering them (sets) for the test team. Instead of the usual 100ppm/K types that is commercially available, e.g.

PRP Quarter Watt Resistors

he can get 50ppm/K ones.

Again read Ed Simon's article and you will know why tempco is important for low non-linearity.


I have talked fitzfish into also make them available to all, provided that he only needs to deal with one person. i.e. if you could organise yourself, collect money, send him one order, then match and distribute yourselves, ...., etc. you can have the same resistors at factory costs. Bear in mind that factory order for large quantities has a delivery time of 6 weeks minimum.

Now all in your own hands.


Patrick
  Reply With Quote
Old 26th May 2011, 09:56 AM   #24
NicMac is offline NicMac  Italy
diyAudio Member
 
NicMac's Avatar
 
Join Date: Feb 2009
Sounds like a good idea to me
As I would be interested in a couple of sets of these resistors I can volunteer to collect money, send one order to fitzfish and distribute to GB participants. To keep things simple I think it would be a good idea to decide a deadline (I guess fitzfish would like to proceed on this soon as delivery times are long) and define what a "set" covers as well as a rough estimate of price/set.
Input appreciated!
Cheers,
Nic
-----------------------------------
Tentative participant list:
NicMac 2 sets
  Reply With Quote
Old 26th May 2011, 10:35 AM   #25
diyAudio Member
 
pmchoong's Avatar
 
Join Date: Jan 2008
Location: Kuala Lumpur
How many sets of these resistors do we need to complete the F5X?
  Reply With Quote
Old 26th May 2011, 10:51 AM   #26
NicMac is offline NicMac  Italy
diyAudio Member
 
NicMac's Avatar
 
Join Date: Feb 2009
1 set = 1 complete F5X build (dual mono amps + PS) - in my understanding.
  Reply With Quote
Old 26th May 2011, 11:55 AM   #27
diyAudio Member
 
pmchoong's Avatar
 
Join Date: Jan 2008
Location: Kuala Lumpur
Tentative participant list:
NicMac 2 sets
pmchoong 2 sets
  Reply With Quote
Old 26th May 2011, 12:37 PM   #28
diyAudio Member
 
Join Date: Jan 2006
Location: Spain
Tentative participant list:
NicMac 2 sets
pmchoong 2 sets
Mravinsky 2 sets
  Reply With Quote
Old 26th May 2011, 01:14 PM   #29
APK is offline APK  United Kingdom
diyAudio Member
 
Join Date: Jan 2005
Location: NW
Tentative participant list:
NicMac 2 sets
pmchoong 2 sets
Mravinsky 2 sets
APK 2 sets
  Reply With Quote
Old 26th May 2011, 01:41 PM   #30
diyAudio Member
 
Join Date: Jan 2006
Location: North west England
Tentative participant list:
NicMac 2 sets
pmchoong 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
  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
Phonoclone and VSPS Group Buys rjm Group Buys 122 28th March 2013 07:41 PM
Potential EUVL F5X designed case user distribution check pchw Group Buys 1004 27th February 2013 04:32 PM
500VA Mains transformer group buys - Flodstroem Group Buys 1 21st February 2006 04:14 PM


New To Site? Need Help?

All times are GMT. The time now is 02:36 AM.


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