F5 power amplifier - 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 12th April 2008, 05:25 PM   #1
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
Default F5 power amplifier

As many of you know, the F5 power amplifier design is done and is
merely awaiting delivery of the issue of AudioXpress which was
scheduled to be mailed April 10.

I feel that it's important to support AudioXpress, a magazine with
which I have a 35 year history, and which also serves as a
mainstay for the DIY comunity. Lately they have kindly printed
projects that I had already posted on the web, but I decided that
they deserve a little better than that.

Coincidentally, I had surgery of the 10th, and having apparently
survived, I am typing this from my bed.

Do not try to lift an XA200.5.

In any case, I know you're eager to get going and as soon as the
magazines arrive I hope that this thread will become a beehive of
activity. I have no doubt that members here will improve or at
least embellish the design.

Here's a copy of the simplified circuit.
Attached Images
File Type: jpg fig05 temp.jpg (42.4 KB, 61355 views)
  Reply With Quote
Old 12th April 2008, 05:28 PM   #2
steenoe is offline steenoe  Denmark
diyAudio Member
 
steenoe's Avatar
 
Join Date: Mar 2004
Default Re: F5 power amplifier

Quote:
Originally posted by Nelson Pass
As many of you know, the F5 power amplifier design is done and is
merely awaiting delivery of the issue of AudioXpress which was
scheduled to be mailed April 10.

I feel that it's important to support AudioXpress, a magazine with
which I have a 35 year history, and which also serves as a
mainstay for the DIY comunity. Lately they have kindly printed
projects that I had already posted on the web, but I decided that
they deserve a little better than that.

Coincidentally, I had surgery of the 10th, and having apparently
survived, I am typing this from my bed.

Do not try to lift an XA200.5.

In any case, I know you're eager to get going and as soon as the
magazines arrive I hope that this thread will become a beehive of
activity. I have no doubt that members here will improve or at
least embellish the design.

Here's a copy of the simplified circuit.
Thanks a lot, Nelson. Hope you recover fully, pretty soon.
Wow thats simple enough for a P2P build

  Reply With Quote
Old 12th April 2008, 05:54 PM   #3
diyAudio Member
 
Join Date: Jun 2002
Location: Italy
Best wishes for great recover
  Reply With Quote
Old 12th April 2008, 06:02 PM   #4
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
All the best for a speedy recovery.

The simplified schematics looks familiar though ?

Profet Amplifier


Patrick

PS I think R4 should also be 600 ohm and not 0R47.


  Reply With Quote
Old 12th April 2008, 06:06 PM   #5
diyAudio Member
 
Join Date: Apr 2007
Nelson,
Yes, best wishes on a speedy recovery and a huge thank-you for your contributions.

sincerely,
7/10
  Reply With Quote
Old 12th April 2008, 06:29 PM   #6
diyAudio Member
 
sandstorm33's Avatar
 
Join Date: Sep 2006
Default Re: F5 power amplifier

Quote:
Originally posted by Nelson Pass
As many of you know, the F5 power amplifier design is done and is
merely awaiting delivery of the issue of AudioXpress which was
scheduled to be mailed April 10.

I feel that it's important to support AudioXpress, a magazine with
which I have a 35 year history, and which also serves as a
mainstay for the DIY comunity. Lately they have kindly printed
projects that I had already posted on the web, but I decided that
they deserve a little better than that.

Coincidentally, I had surgery of the 10th, and having apparently
survived, I am typing this from my bed.

Most certainly, GET WELL QUICKLY!!

I congratulate you on your loyalty to TAA publications . The Audio Amateur and its successors have provided ,through the years , a trustworthy platform for the best of the audio DIY minds. Recalling its 4 issues a year in the 70's,the articles it contained opened a whole new world to understanding and construction of top notch audio equipment . Your 1994 original ZEN article ranks as one of the classics. We all await the F5. Hopefully my copy will arrive this coming week!
  Reply With Quote
Old 12th April 2008, 06:32 PM   #7
Blues is offline Blues  United States
Lightning In A Bottle
diyAudio Member
 
Blues's Avatar
 
Join Date: Sep 2003
Location: The Milky Way
Have a speedy recovery, Nelson!

Another lesson from Mr. Pass...don't lift more than your body weight.
__________________
Life simplified! Leap into the Warpspeed wormhole... http://www.6moons.com/audioreviews/warpspeed/1.html
  Reply With Quote
Old 12th April 2008, 06:33 PM   #8
MikeW is offline MikeW  United States
diyAudio Member
 
MikeW's Avatar
 
Join Date: Sep 2002
Location: North of Boston
Get well soon. Let me know when you are off your medication and I will send you a couple of bottles of wine.
__________________
MikeW
  Reply With Quote
Old 12th April 2008, 06:48 PM   #9
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
Quote:
Originally posted by Blues


Another lesson from Mr. Pass...don't lift more than your body weight.

Well body weight, that's usually an opposite linear function to age

Anyhow, get well soon Nelson, it's gonna be an awful lot of trouble, if we will have to tow your bed to BAF 08


Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 12th April 2008, 06:50 PM   #10
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
Thanks very much.

However, I don't want this to become a best wishes thread, rather
it should focus on what I think will be an exciting little amplifier.

In case you haven't already seen the square wave....
Attached Images
File Type: jpg f5-fig13.jpg (55.1 KB, 52417 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
Rockford Fosgate Power 20001 bd amplifier power rating?? pachoorion Car Audio 8 8th May 2011 10:49 PM
Power transformers versus amplifier output power..what is your option? destroyer X Solid State 38 9th May 2009 05:23 PM
McIntosh Power Amplifier Power Guard johnnyrt Solid State 2 23rd August 2007 10:22 PM
Output power for a power amplifier Progg70 Solid State 33 10th September 2006 08:44 AM
Amplifier 3000 Wats Rms Power + Smps Higcht Power Bestiality MARAVILLASAUDIO Class D 1 5th November 2004 04:06 PM


New To Site? Need Help?

All times are GMT. The time now is 11:10 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