F6 Amplifier - Page 181 - 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 13th September 2012, 07:55 PM   #1801
diyAudio Member
 
vdi_nenna's Avatar
 
Join Date: Oct 2000
Location: PA, USA
Blog Entries: 1
Send a message via Yahoo to vdi_nenna
Quote:
flg. Is the Avatar you show your living pet Jack Russell?
That's not a Jack. I own a Jack. The snout is a bit smaller and ears are shorter on a JTR. Then again, who knows with dogs. Ever see an Irish Jack? They have tiny legs.
Attached Images
File Type: jpg Photo_021609_001.jpg (361.6 KB, 229 views)
__________________
I build, therefore I am.
  Reply With Quote
Old 13th September 2012, 08:00 PM   #1802
diyAudio Member
 
Join Date: Jan 2012
Location: Pennsylvania
Blog Entries: 1
Quote:
Originally Posted by vdi_nenna View Post
That's not a Jack. I own a Jack. The snout is a bit smaller and ears are shorter on a JTR. Then again, who knows with dogs. Ever see an Irish Jack? They have tiny legs.
I hope flg names the breed of the dog he shows as Avatar. There will be no confusion with the pic of Bella. Classic OES.
  Reply With Quote
Old 13th September 2012, 08:18 PM   #1803
lhquam is offline lhquam  United States
diyAudio Member
 
Join Date: Mar 2010
Location: Olalla, Oregon: Land of the 100 Valleys
Hey DIYers. We've been forgetting to look under some important rocks. Think about Papa's efforts during the past year or so. The previous amp circuit was the F5-Turbo, which has the downside of thermal instability as the turbo-diodes heat up. With the temperature coefficient of the SemiSouth R100's perhaps this problem is resolved. Thus, Papa devised the quasi-comp R100 circuit with a transformer as phase-splitter. Now put turbo diodes in parallel with the source resistors.

I did a simulation of this. I need to put together a breadboard and see about thermal stability.
  Reply With Quote
Old 13th September 2012, 08:26 PM   #1804
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
I can pop them into my breadboard and see, but it seems we have already achieved something similar with low Rs.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 13th September 2012, 08:32 PM   #1805
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
yup
__________________
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 13th September 2012, 08:33 PM   #1806
diyAudio Member
 
Join Date: Dec 2009
Forgive me but.... Now we want transitors that act like triodes. Then we want to put them in tube like circuits. Or at least borrow heavly from tube circuits of yore. I guess it can't be helped. Since, a lot was discovered in audio during the tube age. Hard to come up with really new ideas. And nothing wrong with any of this. It worked in the past. Its just interesting to see how things have come almost full circle. From lets chuck out the transformers. To, hey, those transformer ain't as ugly the morning after........ Let me crank up my tube amp now.......
  Reply With Quote
Old 13th September 2012, 09:30 PM   #1807
lhquam is offline lhquam  United States
diyAudio Member
 
Join Date: Mar 2010
Location: Olalla, Oregon: Land of the 100 Valleys
Yup to which? "... we have already achieved something similar with low Rs. " or "Now put turbo diodes in parallel with the source resistors"

Quote:
Originally Posted by Zen Mod View Post
yup
  Reply With Quote
Old 13th September 2012, 09:31 PM   #1808
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Lower Rs sounds better to my ears. I have .25Rs in there now. Going to try .1, but think this may be pushing it.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 13th September 2012, 09:33 PM   #1809
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 lhquam View Post
Yup to which? "... we have already achieved something similar with low Rs. " or "Now put turbo diodes in parallel with the source resistors"
no need for diodes with so low Rs

anyway - we aren't going to make welder of this amp
__________________
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 13th September 2012, 09:37 PM   #1810
lhquam is offline lhquam  United States
diyAudio Member
 
Join Date: Mar 2010
Location: Olalla, Oregon: Land of the 100 Valleys
0R12 is what I have been listening to.

Quote:
Originally Posted by buzzforb View Post
Lower Rs sounds better to my ears. I have .25Rs in there now. Going to try .1, but think this may be pushing it.
  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
New F6 diy coming soon ? Nounours18200 Pass Labs 37 31st August 2012 04:35 PM
Hi Vi F6 box ioro Multi-Way 4 15th April 2012 08:27 PM
Whats happening with F6? jugoslavija Pass Labs 1 1st November 2011 07:39 AM
Hi-Vi F6 kkosiba Multi-Way 14 9th November 2007 08:38 AM
F6 traw Pass Labs 7 2nd November 2007 07:09 PM


New To Site? Need Help?

All times are GMT. The time now is 12:32 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