Rod Elliot P06 Riaa problem - Page 4 - 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 24th September 2004, 12:52 PM   #31
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Do you have plus 14 volts at pin 8 and -14 volts at pin 4 of the opams?

Do you have DC out at the outputs of each opamp of max 3-5 mV? Do you have almost 0 mV at pin, 2, 3, 5, 6?

Is C5 really 1 uF and nothing else? Is R9 really 100 k?

I think a picture will clear up your placement of parts.

If you have 1% metal film with red and brown at the end, you haven't got that wrong?

Only 12 kohms can't be read wrong!

You haven't missed red, brown and orange which can be very near in colour?
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 24th September 2004, 01:20 PM   #32
diyAudio Member
 
Join Date: Jul 2001
Location: The Netherlands
Maybe even better, post a schematic with the Vdc values you measure and were the signal (AC) is lost.. I'm sure Rod won't mind... to debug it this way..

Thijs
  Reply With Quote
Old 24th September 2004, 03:14 PM   #33
diyAudio Member
 
Join Date: Mar 2002
Location: Athens Greece
Guys I found the problem. I disconnected the ground connections at the riaa output going to the preamp and everything is working ok. I will try to find out why this is happening.

Thank you all for your replies.

Very soon I will post pictures of all my project:

AKSA 55W
BOSOZ
ESP P05+P06
SCANSPEAK REFERENCE MONITOR

Best regards to all
George
  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
Krell PAM-5 schematics for riaa problem. webercarbmann Solid State 0 4th June 2007 05:28 PM
Elliot's RIAA Preamp questions Paapaa Solid State 4 1st February 2007 10:28 PM
Elliot P33 problem PM650 Parts 5 20th December 2005 09:49 AM
Trace Elliot GP12SMX Bass Preamp Hum Problem DigitalDon Instruments and Amps 7 28th May 2005 05:02 AM


New To Site? Need Help?

All times are GMT. The time now is 11:02 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