PROTON 520 schematics - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 24th January 2006, 02:33 PM   #1
diyAudio Member
Join Date: Jan 2006
Location: grenoble
Default PROTON 520 schematics

Hi all!

I just wondered whether anyone knew the schematics of this amp, or a link where i could find it ...
The reason is that I noticed a while ago quite a big amount of positive DC on the right HP output of my old '91 Proton 520 amp [+1500mV, not bad isn't it?], and, as the trim pot -that seems to be the Ov adjust- doesn't have any effect any more, I wanted to find out if it's the only one in cause or not.
I would also like to see how it's possible to turn this 520 into a 520B-like, ie, without any tone or effect key [tone, mono, bassEQ, etc...]. How to shunt them correctly...

many thanks in advance to all for your precious help!

Tryphon Tournesol
  Reply With Quote
Old 25th January 2006, 05:00 PM   #2
diyAudio Member
Join Date: Jan 2006
Location: grenoble
definitely nobody knows this cute sounding little amp ?


  Reply With Quote


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
Proton 930 dshambala Parts 10 13th June 2015 07:15 AM
proton am200 diymax62 Solid State 6 26th June 2009 05:21 PM
proton 930 dshambala Solid State 0 7th November 2008 03:42 PM
Proton AM-300 schematic ? ambiancelinux Solid State 0 23rd July 2008 10:10 AM
Proton AP-1000 opa Solid State 4 15th February 2007 08:21 AM

New To Site? Need Help?

All times are GMT. The time now is 11:31 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2