Phono harmonics - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

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 6th March 2004, 02:25 PM   #1
diyAudio Member
 
scott wurcer's Avatar
 
Join Date: Jan 2004
Location: cambridge ma
Default Phono harmonics

I still have a complete set of the old RCA STR series of test records. In setting up my preamp I noticed that, as one might think, for lateral information (L+R) the peaks are more accurately tracked than the valleys. This sets up a particular phase relationship for the (even order at least) distortion components from channel to channel. I was wondering if this contributes to the 'LP' sound (i.e. this would be true for just about anyone). Even the best cartridges that I have owned have way more distortion than almost any preamp that I have measured, hence my experiments with open loop preamps.
  Reply With Quote
Old 8th March 2004, 10:09 AM   #2
Werner is offline Werner  Europe
diyAudio Member
 
Join Date: Jan 2002
Location: Belgium
A bit of topic, but since you mentioned open-loop phono preamps, here's a frontend concept of one of mine, the particular values originating from my 21V PSU and the stash of 100nF Siemens MKV caps I have.

My other phono project is, incidentally, around an AD797 in inverted mode, with a, let's see, AD711 in the servo ;-)
Attached Images
File Type: gif folded_cascode_frontend.gif (30.0 KB, 193 views)
  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
Cancelling Harmonics dsavitsk Tubes / Valves 20 10th July 2007 02:11 PM
odd harmonics? Pbassred Solid State 11 5th April 2007 01:17 PM
Speaker's harmonics - against what? anli Multi-Way 2 21st September 2006 07:58 PM
Power amp harmonics ? dakotadave Tubes / Valves 21 15th May 2006 04:39 AM
Artificial Harmonics guitargully Instruments and Amps 1 15th April 2004 07:53 AM


New To Site? Need Help?

All times are GMT. The time now is 02:04 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