ImPasse Preamplifier - 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 18th January 2009, 09:53 PM   #1
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
Default ImPasse Preamplifier

I am fascinated with this preamp by Mr. Yaniger -- as it has 5 glowing elements --

the wikipedia has a pretty neat neon lamp activitated GIF:
http://en.wikipedia.org/wiki/Neon_lamp

i have seen NE-2's used in relaxation oscillators...
  Reply With Quote
Old 18th January 2009, 10:25 PM   #2
diyAudio Member
 
tubelab.com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
Quote:
as it has 5 glowing elements --
UH... I only count two, the 6DJ8 and the 6SN7. The NE2 should not glow in normal operation, it is there to help ease the shock that V2 sees on power up since the CCS is trying to stuff all of its current int V2's grid before V1 is warm.
__________________
Too much power is almost enough! Turn it up till it explodes - then back up just a little.
  Reply With Quote
Old 18th January 2009, 10:29 PM   #3
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
LEDs.

I haven't seen the article yet, but that guy always seems to be sticking LEDs in there somewhere.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 18th January 2009, 10:33 PM   #4
diyAudio Member
 
tubelab.com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
DOH, I didn't see them glowing. I guess we are both wrong, since I now count 6 glowing things, but I never could count.
__________________
Too much power is almost enough! Turn it up till it explodes - then back up just a little.
  Reply With Quote
Old 19th January 2009, 04:18 PM   #5
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
Since this preamp is specifically designed to work with the Pass F4, I'm taking the liberty of moving the thread to the Pass forum.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 19th January 2009, 04:22 PM   #6
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
I read the AX article. 26db of gain for this pup. Balanced tube line amp.

Does Variac have this in his setup now?
  Reply With Quote
Old 19th January 2009, 04:25 PM   #7
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 SY
Since this preamp is specifically designed to work with the Pass F4, I'm taking the liberty of moving the thread to the Pass forum.

OK
since it is published ( at last ! ) , just put schematic here ....
__________________
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 19th January 2009, 05:11 PM   #8
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
and, if you have to order NE-2's -- they come in assorted flavors -- the NE2H is "leaded", the NE2B is "socketed".
  Reply With Quote
Old 19th January 2009, 05:21 PM   #9
diyAudio Member
 
hifimaker's Avatar
 
Join Date: Oct 2003
Location: San Jose
Where's the pictures or schematic being referring too?

-David
  Reply With Quote
Old 19th January 2009, 05:30 PM   #10
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
Quote:
Originally posted by hifimaker
Where's the pictures or schematic being referring too?

-David

Latest AudioExpress magazine. The picture anyways, some of it, in top right corner.
Attached Images
File Type: jpg axb.jpg (23.3 KB, 10863 views)
  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
Why do you need a preamplifier? globalweb Solid State 54 14th October 2007 04:47 PM
Mic PreAmplifier Ayne Solid State 4 13th April 2007 03:18 AM
Preamplifier aguantesoda Solid State 24 8th September 2006 02:39 PM
Preamplifier DIY Angel Puerto Solid State 13 20th July 2005 08:53 PM


New To Site? Need Help?

All times are GMT. The time now is 08:41 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