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.

Zenotron. Minimalist FET power amplifier. Improvements?
Zenotron. Minimalist FET power amplifier. Improvements?
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 October 2018, 04:30 PM   #41
Machina is offline Machina  Poland
diyAudio Member
 
Join Date: Dec 2010
Pots set to 50ohm both, fuse 10ohm resistor.
Attached Images
File Type: jpg sch 2.jpg (95.0 KB, 99 views)
  Reply With Quote
Old 23rd October 2018, 04:31 PM   #42
chip_mk is offline chip_mk  Macedonia
diyAudio Member
 
Join Date: Jul 2005
Location: Skopje, Macedonia
Design is flawed. Quiescent current of the output stage can not be stabilized. Perhaps putting 1k5 resistors from collector of Q2 and Q4 to sources of output MOSFETs may help.

Last edited by chip_mk; 23rd October 2018 at 04:36 PM.
  Reply With Quote
Old 23rd October 2018, 06:50 PM   #43
fab is offline fab  Canada
diyAudio Member
 
fab's Avatar
 
Join Date: Mar 2004
Location: Canada
Zenotron. Minimalist FET power amplifier. Improvements?
The USSA-3 was a solution to use jfet and lateral mosfet in an Zenotron/Pass F5 topology to obtain good audio performance (lower THD and greater DF). See circuit principle here:
Post your Solid State pics here.

Other way is also to use positive feedback as in the F7 from Pass.
Fab
__________________
My stuff USSA, FSSA: https://fabaudio.online
  Reply With Quote

Reply


Zenotron. Minimalist FET power amplifier. Improvements?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Minimalist A/B fet amplifier plp Solid State 26 7th May 2018 05:47 PM
Yaqin MC-5881A amplifier improvements Mikie Tubes / Valves 169 1st March 2018 10:23 AM
Threshold FET 10/pc Phono Stage Preamp Schematics aka FET 10pc, FET-10pc, fet ten/pc krellkraver Solid State 2 17th July 2015 03:49 PM
Kaneta method's all FET power amplifier gaborbela Solid State 10 11th May 2009 08:08 AM
Question about Zenotron Leolabs Solid State 6 8th April 2009 11:49 AM


New To Site? Need Help?

All times are GMT. The time now is 11:12 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki