schematic a370 - 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 23rd December 2003, 06:25 PM   #1
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Default schematic a370

anyone seen a site with this, saw one with a audio research d400, but can't find now, any pointers welcome..thanks
  Reply With Quote
Old 27th December 2003, 06:40 PM   #2
diyAudio Member
 
Join Date: Dec 2003
Location: earth
bump!
  Reply With Quote
Old 27th December 2003, 08:39 PM   #3
diyAudio Member
 
Join Date: Dec 2003
Location: earth
sorry can't edit....I mean musical fidelity A370...help...thanks
  Reply With Quote
Old 28th December 2003, 11:13 AM   #4
A 8 is offline A 8  Sweden
diyAudio Member
 
Join Date: Mar 2003
Location: Gothenburg
Default How about this?

Input stage
Attached Images
File Type: jpg mf_mosfet_p-amp_inputstage.jpg (16.9 KB, 2260 views)
  Reply With Quote
Old 28th December 2003, 11:16 AM   #5
A 8 is offline A 8  Sweden
diyAudio Member
 
Join Date: Mar 2003
Location: Gothenburg
Output stage
Attached Images
File Type: jpg mf_mosfet_p-amp_powerstage.jpg (18.7 KB, 2135 views)
  Reply With Quote
Old 28th December 2003, 01:21 PM   #6
diyAudio Member
 
Join Date: Dec 2003
Location: earth
hi thanks, its quite close, but not quite the one I saw, almost there!
  Reply With Quote
Old 28th December 2003, 04:20 PM   #7
A 8 is offline A 8  Sweden
diyAudio Member
 
Join Date: Mar 2003
Location: Gothenburg
That is the schematics for the P140/270 and 370 designed in back in -85.
  Reply With Quote
Old 28th December 2003, 04:25 PM   #8
diyAudio Member
 
Join Date: Dec 2003
Location: earth
The one I saw had two transistors as the driver stage, and 5 pairs of paralleled mosfets at the output. It is very similar though.It was definately a MF a370.
A few transistors in the opamps power supply line, too. It is possible it was revised slightly, as there were 3 versions of the A370.
  Reply With Quote
Old 16th January 2004, 10:19 PM   #9
brikman is offline brikman  United Kingdom
diyAudio Member
 
Join Date: Jan 2004
Location: Detached house
A schematic was posted to this site some time ago, use a Google search on MF A370 to pick it up.

Does anyone know whether the J83 and K226 devices used in the A370 are still available?

Has anyone any more details on these devices which I assume are Mosfets?

Regards

Marcus (First Post!!)
  Reply With Quote
Old 7th April 2004, 10:10 PM   #10
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Found it and saved it to my hard drive, interesting design, don't fully understand the VAS stage, and the transistors in the opamp stage, but yes, mosfets.

Try searching on the web for them, or ring MF, or the manufacturer of the fets.
  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
Musical fidelity P270 and A370 fets AMV8 Solid State 14 16th September 2011 03:40 AM
Musical Fidelity A370 Ali Tait Solid State 9 4th March 2009 09:25 AM
FS: NEW Rythmik Audio, A370-SE 24dB Subwoofer Plate Amp $200 with FREE SHIP! chanorama Swap Meet 4 10th April 2007 07:22 PM
Musical Fidelity X-P200 versus P270/A370 dublin78 Solid State 0 19th March 2006 09:48 AM


New To Site? Need Help?

All times are GMT. The time now is 06:01 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