Pumpkin preamp - ordered by Steen , official making thread - Page 250 - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 27th October 2008, 02:50 PM   #2491
Manu is offline Manu  Europe
diyAudio Member
 
Manu's Avatar
 
Join Date: Nov 2002
Location: Vienna, Ostrich
Hehe ...

Thats nothing new but :
Indeed, cooking and audio tronics are, to some extension, matter of numbers /maths if you want.
You can also follow a receip and produce something tasty even if you're not a big chief yourself.
But to be creative in the field is still another matter.
Measurement are possible too.
But measuring acidity of wine won't tell you much about quality/taste ... but it will tell you if you're drinking vineggar or not

(Just to test the metaphor)



manu
__________________
Manu, masked agent of entropy & ZMs Čiko
  Reply With Quote
Old 29th October 2008, 05:40 PM   #2492
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Default Lost in Common Mode Chokes

Hello,
I've got some choke questions.
On the shunty JP1 and JP1a can be used for inserting a choke.
If I use a common mode choke do I connect the +voltage (JP1) to one coil of the common mode choke and the -voltage (JP1a) to the other coil of the same common mode choke ? So one common mode coil for one shunty.

Or do I need two common mode coils for one shunty:
connect the +voltage (JP1) to one coil of the common mode choke and cut the ground trace and let it pass through to the other coil of the same common mode choke ?
The same for -voltage (JP1a).

Or something else ?

Will this do the job: 16mH, 0.16ohm, 2.6A choke:
http://search.digikey.com/scripts/Dk...me=237-1237-ND

Regards,
Danny
  Reply With Quote
Old 29th October 2008, 05:58 PM   #2493
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Default Re: Lost in Common Mode Chokes

Quote:
Originally posted by danny_66
Hello,
I've got some choke questions........

Will this do the job: 16mH, 0.16ohm, 2.6A choke:
http://search.digikey.com/scripts/Dk...me=237-1237-ND

Regards,
Danny

one common choke per Shunty - one coil for + , one coil for - leg

that digi choke , at least looking at specs , is good for purpose ;

didn't saw dimensions ........ anyway - everything in is overkill ..... so - be it .....
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 29th October 2008, 06:54 PM   #2494
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Thanks !
  Reply With Quote
Old 29th October 2008, 08:43 PM   #2495
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
I have been playing around with inductors for this purpose, 5mH per leg seems to be where you meet the diminishing returns wall.



Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 31st October 2008, 01:17 PM   #2496
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Default HW present ;)

BQ Book - 8,5MB
Attached Images
File Type: jpg ween.jpg (6.4 KB, 307 views)
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 3rd November 2008, 04:14 PM   #2497
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
Default Re: HW present ;)

Quote:
Originally posted by Zen Mod
BQ Book - 8,5MB

Yeah right, get back to work


Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 4th November 2008, 06:22 PM   #2498
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Default just for ........

....... :
Attached Images
File Type: jpg ctrl_power_corrupts.jpg (63.0 KB, 227 views)
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 4th November 2008, 09:39 PM   #2499
Variac is offline Variac  United States
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA
Yup, that's pretty much a portrait. I'm serious about any suggestions you have on how to accomodate chat and OT on our site. Think about it. Some chat area that would actually be used..?

Mark
  Reply With Quote
Old 4th November 2008, 10:01 PM   #2500
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally posted by Variac
Yup, that's pretty much a portrait. I'm serious about any suggestions you have on how to accomodate chat and OT on our site. Think about it. Some chat area that would actually be used..?

Mark

seriously ?

( pretty strange concept for me )

OK - seriously - if Jason think that's doable with some new board software , why not ..... but - on the other hand - one of main virtues of this ( frankly - and few more good forums ) is archive role of accumulated knowledge and info .

I'm scared with possibility that any wit/wise sentence , usually written and sealed as is , can be just ........ lost in the wind of chat board .....

or I'm just not aware of possibility of some sort of "recording" of chats ?

certainly I'm not good informed , because I'm rarely "chatting" even via Skype .....

hehe , when I'm mentioning wit/wise sentences , I'm certainly not thinking on my self .......

have you some recent chats , regarding chats , with other mods ?
I'm all ears ....
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  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



New To Site? Need Help?

All times are GMT. The time now is 10:04 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