Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

B1 Rev. 2
B1 Rev. 2
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 20th January 2019, 07:01 PM   #171
ludkokanta is offline ludkokanta  Croatia
diyAudio Member
 
Join Date: Sep 2008
Those 10 ohm resistors... are they “grid stoppers” to serve for HF / oscillation protection? Could another small mkp capacitor be used on the filtering rails after those?
  Reply With Quote
Old 20th January 2019, 10:49 PM   #172
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
B1 Rev. 2
no tube - no grid ........ but there are gates ....... but these aren't gate resistors

simply, that is RC filtering and - even more important - inrush current limiters , for moment when juice is flowing to empty caps

small caps across electrolytics ..... your choice
__________________
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 21st January 2019, 07:19 AM   #173
ludkokanta is offline ludkokanta  Croatia
diyAudio Member
 
Join Date: Sep 2008
In the 2014 b1 r2 schematics those resistors are the last thing before the jfets...
  Reply With Quote
Old 21st January 2019, 07:34 AM   #174
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
B1 Rev. 2
link , please
__________________
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 21st January 2019, 08:56 AM   #175
ludkokanta is offline ludkokanta  Croatia
diyAudio Member
 
Join Date: Sep 2008
Post #1 of this thread
  Reply With Quote
Old 21st January 2019, 09:09 AM   #176
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
B1 Rev. 2
I did replied , then

Click the image to open in full size.
__________________
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 21st January 2019, 09:32 AM   #177
6Feet is offline 6Feet
diyAudio Member
 
Join Date: Nov 2011
Why is C2 of a higher value than C3?
  Reply With Quote
Old 21st January 2019, 09:36 AM   #178
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
B1 Rev. 2
typo

put whatever you want , of course - same value
__________________
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 21st January 2019, 10:06 AM   #179
Vix is offline Vix  Yugoslavia
diyAudio Member
 
Vix's Avatar
 
Join Date: Nov 2003
Location: Somewhere on Planet Earth
Quote:
Originally Posted by ludkokanta View Post
Post #1 of this thread
Oh, that 10 ohm reistor is just part of the CRC filter, to lower the noise from the PSU. If you have a clean supply, feel free to omit it.
  Reply With Quote
Old 26th January 2019, 07:29 PM   #180
ludkokanta is offline ludkokanta  Croatia
diyAudio Member
 
Join Date: Sep 2008
The pcb I mentioned in post #146 is put to good use for my new b1 r2. I did the mods Zen mod suggested, put a couple of vishay mkp1839 from supply rails to ground center. With the new SH pass x150 and ancient dynaudio contours its working swimmingly.

Just in case I run it with a cap now, but I'll try small isolation transformer to have a taste of the "iron pre"
  Reply With Quote

Reply


B1 Rev. 2Hide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sanyo/B&O Icepower 200AC Rev.D, schematic about rev. engin., not complete finished tiefbassuebertr Class D 54 16th March 2019 11:20 PM
Multichannel Mezmerize B1 or Pass B1 ORNJ Pass Labs 9 11th August 2015 12:04 AM
Pot > B1 > step up transformer > B1? sharpi31 Pass Labs 19 20th October 2013 01:45 PM
Mesmerize B1 vs Original Pass B1 - please guide me! KT Pass Labs 9 6th September 2012 05:57 PM
Aleph P rev 1.7 Ignatz Pass Labs 3 24th April 2002 07:58 AM


New To Site? Need Help?

All times are GMT. The time now is 10:41 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki