tash ma hall amp - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 3rd February 2013, 08:49 PM   #1
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default tash ma hall amp

this project is characterized by a high circulating current
especially in the differential input stage

in fact is a current mirror CFP

the next stage is characterized by a bootstrap titpico schema Jeff Rowland

Then the typical triplet EF emitter follower

if you like to use the simulator calculates the optimized values ​​of 35V dual

Thanks
Attached Images
File Type: png Tash Ma Hall Amp.PNG (81.8 KB, 281 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 4th February 2013, 09:55 AM   #2
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
probably the best input stage is the diamond buffer
(based on MA-9S)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 4th February 2013, 12:23 PM   #3
DUG is offline DUG  Canada
diyAudio Member
 
Join Date: Jan 2003
Location: mississauga ontario canada
I don't see the point of the two PNP transistors in the collectors of the input diff stage.

The b-e junction is shorted so there will never be collector current...

Why are they there?
__________________
Doug We are all learning...we can all help
"You can't stop the signal, Mal. Everything goes somewhere..."
  Reply With Quote
Old 5th February 2013, 10:06 AM   #4
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
it's a CFP design apply on input
see this example
www.esafono.it/Suplifier.pdf
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 5th February 2013, 12:48 PM   #5
DUG is offline DUG  Canada
diyAudio Member
 
Join Date: Jan 2003
Location: mississauga ontario canada
Quote:
Originally Posted by Stee View Post
it's a CFP design apply on input
see this example
www.esafono.it/Suplifier.pdf
The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.
__________________
Doug We are all learning...we can all help
"You can't stop the signal, Mal. Everything goes somewhere..."
  Reply With Quote
Old 5th February 2013, 01:31 PM   #6
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
www.esafono.it/Suplifier.zip
sorry
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 5th February 2013, 01:31 PM   #7
ilimzn is offline ilimzn  Croatia
diyAudio Member
 
Join Date: Feb 2005
Location: Zagreb
Quote:
Originally Posted by Stee View Post
it's a CFP design apply on input
see this example
www.esafono.it/Suplifier.pdf
No it's not. Look again, you have drawn it incorrectly.
  Reply With Quote
Old 5th February 2013, 02:21 PM   #8
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
www.esafono.it/Suplifier.zip
it is dot .zip
works
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 5th February 2013, 02:26 PM   #9
diyAudio Member
 
Join Date: Jan 2011
Location: Fosser, Aurskog-Holand, Akershus, Norway.
I looked at the Ultimate Supplifier, and it's not correct what You have drawn.
If You have any idea behind that transistor is, I guess more than me is curious on what it is.
__________________
Sooner or later you end up with TANDBERG
  Reply With Quote
Old 5th February 2013, 02:50 PM   #10
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default CFP it is like a supertransistor

see drawing
increase current
Attached Images
File Type: png CFP PAIR.PNG (16.8 KB, 144 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  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
For sale: 2 x Fivre 2A3 Single Plate, 60 mA + 44 mA emission on Funke W20 2A3 Maniac Swap Meet 3 1st October 2011 01:18 PM
Crown MA-12000i / MA-5000i / MA-9000i jack2040 Solid State 4 8th March 2011 02:21 PM
MA Audio AMP mike49504 Car Audio 4 23rd September 2010 09:45 PM
Music Hall MMF-5 turntable & Custom Pre-amp(Hagtech Bugle+PSU+volume+switch,etc) Destroyer OS. Swap Meet 2 6th October 2008 05:49 PM
Marantz MA 500 or MA 700 schematic krishu Solid State 0 15th March 2004 02:59 PM


New To Site? Need Help?

All times are GMT. The time now is 12:07 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