| Search | Login/Register
   Home » Analog Playback» A truly cool solution for RIAA re-tuning…. (3 posts, 1 page)
  Print Thread | 1st Post |  
Page 1 of 1 (3 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Where are our good phonostages?..  Omnigon Tubes...  Analog Playback Forum     61  421656  05-31-2004
  »  New  AMR PH-77: just another phonostage or more?..  Oh, yeah... the sound of the Thing Itself......  Analog Playback Forum     11  82945  07-05-2009
  »  New  Swell New RIAA-Only Phonostage, Only $60k!!!..  Vitus...  Analog Playback Forum     8  36557  07-05-2010
  »  New  The mono cartridges paradox...  More info on Pierre Clement...  Analog Playback Forum     11  57471  11-29-2010
08-29-2007 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,495
Joined on 05-28-2004

Post #: 1
Post ID: 5160
Reply to: 5160
A truly cool solution for RIAA re-tuning….
All records, particularly from good period, were recorded at different equalization. Even the records that were RIAA marked were in fact WAY off…

How to deal with it? Running a feedback to high impedance, in the way how it made in EAR 384P, permited useing ultra small values of caps. I use variable air caps that act as a perfect equalizers… However, the variable air caps are very hard to dial-in exactly, at least the caps that I'm useing. Here I found today a solution that might do exactly what is necessary.

It is an electronically programmable capacitor. So far it is up to 14.5pF, another year and it will be larger and as soon it hits hundreds of pFs it will be perfect for LP correction. I do not know how they milk capacitates in there and I hope that capacitates do have good sound….

http://www.intersil.com/cda/deviceinfo/0,1477,X90100,0.html

The caT


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
08-29-2007 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,130
Joined on 10-12-2006

Post #: 2
Post ID: 5163
Reply to: 5160
So, you do this by ear?
How is one sure of finding/matching the actual turnovers used for the recording, since, as you mention, the labels don't always tell the whole story?

Or is this just another way to fiddle with the sound?

Does the switching get/stay out of the way?

Cool idea, anyway!

I hope the resistors themselves sound OK.

Best,
Paul S
08-30-2007 Post does not mapped to Knowledge Tree
drdna
San Francisco, California
Posts 488
Joined on 10-29-2005

Post #: 3
Post ID: 5167
Reply to: 5160
Dialing in
Romy, next you will be suggesting a digital equalizer! ;D
Page 1 of 1 (3 items) Select Pages: 
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Where are our good phonostages?..  Omnigon Tubes...  Analog Playback Forum     61  421656  05-31-2004
  »  New  AMR PH-77: just another phonostage or more?..  Oh, yeah... the sound of the Thing Itself......  Analog Playback Forum     11  82945  07-05-2009
  »  New  Swell New RIAA-Only Phonostage, Only $60k!!!..  Vitus...  Analog Playback Forum     8  36557  07-05-2010
  »  New  The mono cartridges paradox...  More info on Pierre Clement...  Analog Playback Forum     11  57471  11-29-2010
Home Page  |  Last 24Hours  | Search  |  SiteMap  | Questions or Problems | Copyright Note
The content of all messages within the Forums Copyright © by authors of the posts