HELP! Rotel RA-1062 - Page 6 - 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 8th March 2009, 08:00 PM   #51
Rbz5416 is offline Rbz5416  United Kingdom
diyAudio Member
Join Date: Mar 2009
Originally posted by homemodder
Send me mail through my mail link here with your email and Ill send it to you.
Thanks for the offer but as a new member, I'm not allowed to e-mail other members yet. My CP options are set to receive e-mail so hopefully you can send it that way?
  Reply With Quote
Old 8th March 2009, 11:37 PM   #52
Account disabled at member's request
Join Date: May 2006
I have sent it to Jan Dupont who is kindly hosting it on his site, you could download it from there, I see he has already included it in his library. Here is the link,
  Reply With Quote
Old 9th March 2009, 01:55 PM   #53
Rbz5416 is offline Rbz5416  United Kingdom
diyAudio Member
Join Date: Mar 2009
Thanks very much guys.

Couple of spurious Rs in the link though!
  Reply With Quote
Old 9th March 2009, 01:57 PM   #54
Account disabled at member's request
Join Date: May 2006
Oops, I had just returned from a party when I responded
  Reply With Quote
Old 12th March 2009, 01:07 AM   #55
diyAudio Member
Join Date: Jun 2003
Location: Cameron Highlands
Default Rotel Ra-971mk2

Hi ALex,
Need some precious tips from u mate regarding some issues i'm having with my rotel ra-971mk2. Also tips on upgrading it pls. Have sent u an email.

  Reply With Quote
Old 2nd January 2010, 12:53 PM   #56
diyAudio Member
Join Date: May 2004
Location: Zagreb
Default Rotel RA1060 probems

I'm using this already open theme to ask and if possibly reslove several questions about my RA-1060.
I bought this amp fairly cheap, but since it has good potential, I would like to get maximum of it.
First opening revealed:

1. All this production run is obviously made using Panasonic FC, since my amp has not any Black Gate at all; the amp was never opened and solderet, it is clear.
The preamp is OPA2604, and for other pourpose (tone controls/headphones) there are two 2134s; in the schematics are listed here AD712.

2. DC offset is (to me) unacceptably high - 70mV and 60mV; often, it is said to be unmatched input transistors; I cannot order easy the original A1610/C2362K. Is there better transistors for this pourpose? Somwhere the Phillips BD139/140 are reccomended, but it seems to be overkill for that pourpose?

3. On first check, bias was some 2,5mV/0R22, too low; I make it stable to some 10-11mV, according to posts here, and althought it sounds a bit better - the older RA-971 blows it up, unmodded

4. How to change the sensitivity of the pot?
It is very difficult to adjust volume at low level, even at "8-9" o'clock, it is too loud...the pot is some Alps, motirized 50k unit, but not Alps Blue or slimilar class;

Any input appreciated

Last edited by eradoncic; 2nd January 2010 at 01:11 PM.
  Reply With Quote
Old 9th January 2010, 02:28 PM   #57
diyAudio Member
Join Date: May 2004
Location: Zagreb
  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
Rotel RCD 855 tonitze Digital Source 20 20th December 2016 10:04 AM
Service Manual/ schematic for Rotel ROTEL RHCD-10 Michi CD player Staykov Digital Source 9 1st March 2016 10:40 AM
Rotel RA 931 argonrepublic Chip Amps 0 20th April 2009 01:26 AM
Rotel RC-850 Pre Amp + Rotel RB-870BX bleachershane Analog Line Level 4 9th February 2009 11:20 AM
Phonic powerpod 1062 dead channel disassembled Solid State 0 7th July 2008 04:44 PM

New To Site? Need Help?

All times are GMT. The time now is 12:42 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