italian style - 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 16th January 2009, 06:45 PM   #1
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default italian style

http://translate.google.com/translat...istory_state0=
Attached Images
File Type: gif finalino.gif (24.7 KB, 1541 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 16th January 2009, 06:51 PM   #2
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default Stee italian Style

CEFP
CFP + EF Output Stage

better use NTE37MCP as Final

NTE36(NPN) + NTE37(PNP) Matched Complementary Pair

TOSHIBA 2SA1930 + 2SC5171 as driver
Attached Images
File Type: jpg calidarium.jpg (31.9 KB, 1238 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 17th January 2009, 05:29 PM   #3
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default Chet Amp application

see this complete schematic
Attached Images
File Type: jpg chetamp.jpg (79.3 KB, 1323 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 17th January 2009, 10:46 PM   #4
Beto is offline Beto  Brazil
diyAudio Member
 
Beto's Avatar
 
Join Date: Feb 2008
congratulations on the excellent project which the values of bias adjustment to 60ma. I can change the value of
R109 = 470r for trim-pot for 1k to set off-set.
  Reply With Quote
Old 18th January 2009, 07:03 AM   #5
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default Thanks a lot Beto

now there is version 2
ready to test

http://www.esafono.it/rotel.pdf
Attached Images
File Type: jpg chetampv2.jpg (74.8 KB, 1126 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 18th January 2009, 07:16 AM   #6
jaycee is offline jaycee  United Kingdom
diyAudio Member
 
Join Date: Apr 2004
Location: Norwich, UK
The first circuit is simply Musical Fidelity's A1 power amplifier redrawn, without component values.

The "Chet Baker" Amp is a Rotel clone with a slightly different output stage - the graphics used for the schematic, style of compensation, plus the choice of transistors is identical to many Rotel service manuals.
  Reply With Quote
Old 18th January 2009, 07:56 AM   #7
Symon is offline Symon  United Kingdom
diyAudio Member
 
Join Date: Mar 2002
Location: Herts, UK
The Chet Baker schematic has a Bryston style output, which can be tricky to keep stable.

One thing the 0.22 resistors in the collectors of the CFP output devices serve no purpose. I think they should be moved to the emitter side.

I'm interested to hear if it works
  Reply With Quote
Old 18th January 2009, 08:38 AM   #8
Stee is offline Stee  Italy
diyAudio Member
 
Stee's Avatar
 
Join Date: Jul 2005
Location: milan
Default Thanks Symon

can you post a Bryston style output schematic example?

see the source of this idea:

http://www.esafono.it/ccc.pdf
Attached Images
File Type: jpg chetampv3.jpg (74.8 KB, 988 views)
__________________
Please download my best audio idea https://www.facebook.com/DiyAudioHiEnd
  Reply With Quote
Old 18th January 2009, 07:52 PM   #9
Symon is offline Symon  United Kingdom
diyAudio Member
 
Join Date: Mar 2002
Location: Herts, UK
there used to be a technical description on hte bryston web site, but can't find it right now.

take a look around the site.

Bryston Technical

this is the schematic of a Bryson amplifer

Bryston Schematic


You can also find discussion on Bryston amplifiers here on DIYAudio ..
  Reply With Quote
Old 18th January 2009, 08:06 PM   #10
Beto is offline Beto  Brazil
diyAudio Member
 
Beto's Avatar
 
Join Date: Feb 2008
In the original project could not a good result
modified some parts in the scheme to operate the simulator see the components changed:
R103 and R113 = 47k
R115 connecting a capacitor of 220uf to the ground.
R127 = 2k
Vr103 = 1k
R125 = 1k
q107 put capacitor 22pf of B / C.
  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
Italian transformer needs a job... redrabbit Pass Labs 1 14th April 2006 12:52 AM
New diy Forum in Italian plovati Everything Else 3 15th October 2005 04:25 PM
New Italian Metal Band Giaime Music 15 18th June 2005 02:39 PM
CIAO (in italian means 'HI') every DIYer, wmincy Introductions 1 29th September 2003 04:13 AM


New To Site? Need Help?

All times are GMT. The time now is 08:21 AM.


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