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

Solid State Talk all about solid state amplification.

only four stage AMP
only four stage AMP
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
Thread Tools Search this Thread
Old 7th June 2012, 08:58 AM   #1
Stee is offline Stee  Italy
diyAudio Member
Stee's Avatar
Join Date: Jul 2005
Location: milan
Default only four stage AMP

normally are counted for a 6-stage power amplifier
but the timing of the feedback requires a lower number of steps

this amplifier is a modification of M LEVINSON NO 20.5

the input is the inverting and requires a buffer
Attached Images
File Type: png a700mod.PNG (133.4 KB, 95 views)
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 7th June 2012, 09:14 AM   #2
jan.didden is offline jan.didden  Europe
diyAudio Member
jan.didden's Avatar
Join Date: May 2002
Location: The great city of Turnhout, BE
Stee, I don't know how you count, but almost all power amps have three gain stages.
The input stage, often balanced/long tail pair; the voltage amplifier often called Vas or TIS (transimpeance stage) and the output stage.
In your circuit I also see 3 stages unless you count the driver emitter folower as a stage, but normally we only count gain stages.

BTW the 'run time' of the feedback signal through the stages is irrelevant. People often confuse it with phase shift.

jan didden
Music is dither to the brain; lets me think below the usual chaos - me
Get more Linear Audio for less! Check out my Autoranger and SilentSwitcher
  Reply With Quote


only four stage AMPHide 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
2 stage Stereo/4 Stage Mono Triode Preamp with independent drive control & inverters sampleaccurate Tubes / Valves 10 9th March 2011 10:31 AM
6N1P & SV83 mu stage driving 845? dr.strangelove3 Tubes / Valves 19 8th January 2007 08:11 PM
Single Stage Line Amp (Diff Amp) Tube? AudioAngel Tubes / Valves 9 28th November 2006 11:38 AM
Does anyone compare phono stage both XONO & 47LABS ANALOG GUY Analogue Source 11 1st October 2005 08:24 AM
Active crossover & buffer stage for a 5 channel amp sunil Chip Amps 9 15th December 2004 07:10 AM

New To Site? Need Help?

All times are GMT. The time now is 09:11 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio