F5 Turbo Builders Thread - Page 145 - 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 23rd February 2013, 05:03 PM   #1441
coils is offline coils  United States
diyAudio Member
 
Join Date: Jan 2004
Location: Los Angeles
Quote:
Originally Posted by zoe View Post
Green wire connects amplifier boards grounds together
That is creating a loop, I would cut that one out.
__________________
Coiler
  Reply With Quote
Old 23rd February 2013, 05:06 PM   #1442
coils is offline coils  United States
diyAudio Member
 
Join Date: Jan 2004
Location: Los Angeles
Quote:
Originally Posted by Blink_PT View Post

I wonder if any member has connected two independent secondary with one bridge.
Bkink, I just noticed that the burning amp 1 psu is wired that way, as 6L6 said it is common.
__________________
Coiler
  Reply With Quote
Old 23rd February 2013, 05:10 PM   #1443
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
I think it's probably a better idea to use dual rectifier bridges with a dual secondary transformer. However, the single bridge does work, and has been used in many successful commercial and DIY projects.

I think Nelson usedit in the F5T article mainly to utilize the MUR3020 diodes.

This is a time when there is more than one correct answer to the question. Remember that we need +32v/GND/-32v clean, quiet, and of sufficient current to keep the amp happy. There are lots of ways to do that.
  Reply With Quote
Old 23rd February 2013, 05:18 PM   #1444
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Question - Has anybody had a successful build of a V2 or V3 using the seperate toecutter Front-end board and output boards?

I know there are a few all-in-one boards out there, I'm interested in the 3-peice (or more) boards.
  Reply With Quote
Old 23rd February 2013, 05:51 PM   #1445
zoe is offline zoe  United States
diyAudio Member
 
Join Date: May 2010
Location: Santa Rosa ca.
Quote:
Originally Posted by 6L6 View Post
I think it's probably a better idea to use dual rectifier bridges with a dual secondary transformer. However, the single bridge does work, and has been used in many successful commercial and DIY projects.

I think Nelson usedit in the F5T article mainly to utilize the MUR3020 diodes.

This is a time when there is more than one correct answer to the question. Remember that we need +32v/GND/-32v clean, quiet, and of sufficient current to keep the amp happy. There are lots of ways to do that.
I have a single bridge with two transformers tied together I am trying different things to learn. I started with single transformer single bridge.Now that I received more diodes I'll build one more bridge. One for each transformer Later separate capasitor banks I still have a small buzz only heard on quiet passages of music however I am spoiled as my F5 is dead quiet. I have had noisy risitors in the past as you can see from pictures I am using rather inexpensive ones.I will also try removing transformers from the chassis and running long wires to ps probaly next week as it's a beautiful day I'm going to take a hike.
__________________
be good
zoe
  Reply With Quote
Old 23rd February 2013, 08:55 PM   #1446
Marra is offline Marra  United Kingdom
diyAudio Member
 
Join Date: Nov 2009
Location: Near Lincoln
My amp section is wired and biased;just the power supply box to make when the aluminium finally arrives.

Click the image to open in full size.

Click the image to open in full size.

I really must get my eyes tested.
  Reply With Quote
Old 23rd February 2013, 09:48 PM   #1447
diyAudio Member
 
noSmoking's Avatar
 
Join Date: May 2010
Location: Texas
hi looking good!
Back off about 6 " and then crop the pic it will be in focus then,not so fuzzie,I like the add on heatsink Idea!Good work!
NS
  Reply With Quote
Old 24th February 2013, 03:29 AM   #1448
diyAudio Member
 
Join Date: Feb 2009
Quote:
Originally Posted by 6L6 View Post
Question - Has anybody had a successful build of a V2 or V3 using the seperate toecutter Front-end board and output boards?

I know there are a few all-in-one boards out there, I'm interested in the 3-peice (or more) boards.
hello. i have a successful power up of this boards. well. i have only fired up the front ends yet. with cascoding.
  Reply With Quote
Old 24th February 2013, 01:49 PM   #1449
diyAudio Member
 
Join Date: Jan 2010
Location: Harrow, UK
Quote:
Originally Posted by 6L6 View Post
Question - Has anybody had a successful build of a V2 or V3 using the seperate toecutter Front-end board and output boards?

I know there are a few all-in-one boards out there, I'm interested in the 3-peice (or more) boards.
6L6
Would you like me to send you a set to play with?
  Reply With Quote
Old 24th February 2013, 06:05 PM   #1450
diyAudio Member
 
Join Date: Mar 2003
Location: midwest
Quote:
Originally Posted by 6L6 View Post
Question - Has anybody had a successful build of a V2 or V3 using the seperate toecutter Front-end board and output boards?

I know there are a few all-in-one boards out there, I'm interested in the 3-peice (or more) boards.
They will make changing out the cooked mosfets easier! Have you figured out what keeps zapping them? I'm wondering if I should pay for some extra sets...

Russellc
__________________
Pass DIY B-1, Pass DIY F-5
  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
F5 Turbo Circuit Boards chchyong89 Pass Labs 2356 12th September 2014 07:50 PM
B1 builders thread Bas Horneman Pass Labs 696 14th July 2014 12:57 PM
F5 Turbo is posted Nelson Pass Pass Labs 635 6th April 2014 10:51 AM
F5 turbo problems Rob Dingen Pass Labs 17 11th January 2013 08:38 PM
F5 Turbo ............. if only !!!!!! a.wayne Pass Labs 23 21st January 2012 02:24 AM


New To Site? Need Help?

All times are GMT. The time now is 09:29 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