ANGLING FOR 90° - tangential pivot tonearms - Page 58 - 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 8th November 2013, 04:03 AM   #571
diyAudio Member
 
directdriver's Avatar
 
Join Date: Nov 2005
Default Schröder LT tangential tracking tonearm

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Drawings from the recent patent!

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 8th November 2013, 04:17 AM   #572
tnargs is offline tnargs  Australia
diyAudio Member
 
Join Date: Sep 2006
Yes, I saw and heard a Thales Simplicity a couple of weeks ago. Nice!
  Reply With Quote
Old 9th November 2013, 12:20 AM   #573
diyAudio Member
 
Join Date: Dec 2004
Location: Fernandina Beach, Florida
Frank,
Congratulations on your new patent! I hope it adds good things to your life!

Andy
  Reply With Quote
Old 9th November 2013, 08:21 PM   #574
diyAudio Member
 
directdriver's Avatar
 
Join Date: Nov 2005
Schröder LT tonearm on a Kodo The Beat turntable by Steve Dobbins in the recent RMAF 2013, images courtesy of partimeaudiophile.com. Notice the non-offset headshell.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 27th November 2013, 04:15 PM   #575
diyAudio Member
 
Join Date: Mar 2011
Very impressive indeed. Couple of months we here, rather smart guys, tried to figure out what lies on the bottom of this arm, still with no result. This is where ingenuity is: very simple, elegant and effective design with no unnecessary features, nor under- , nor over-engineered. Bravo, Frank, you are still able to amaze us, picky spoiled audiophiles, after 100-something years of tonearm development history.

Last edited by walterwalter; 27th November 2013 at 04:18 PM.
  Reply With Quote
Old 27th November 2013, 11:13 PM   #576
diyAudio Member
 
Join Date: Feb 2006
Location: Willy, VIC
Quote:
Originally Posted by walterwalter View Post
Very impressive indeed. Couple of months we here, rather smart guys, tried to figure out what lies on the bottom of this arm, still with no result.
There's no mystery, it's been obvious from the first photos.
  Reply With Quote
Old 28th November 2013, 03:08 AM   #577
diyAudio Member
 
directdriver's Avatar
 
Join Date: Nov 2005
Quote:
Originally Posted by Mark Kelly View Post
There's no mystery, it's been obvious from the first photos.
Agree.


To those still not sure, take another look at the first photo blown up and spelling out the obvious with parts number in the patent...


Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 28th November 2013, 02:56 PM   #578
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: OC,Calif.
Amazing that the leverage needed to pull this arc across the record works out.
This doesn't look like it would work well with high compliance MC's, but most would mate this with medium to low compliance ones anyway so probably no issues.
A very interesting and unique design that is just begging for a DIY attempt

Regards
David
  Reply With Quote
Old 28th November 2013, 03:23 PM   #579
diyAudio Member
 
Join Date: May 2003
Location: Berlin Germany
Hi,
It works fine with cartridges of super high compliance(>30CU) too. The force required to deflect the arm sideways, translated into forward motion is always less than 3,5milligrams. Try to find an arm with captive bearings that requires less force to overcome stiction.... it's the wiring that becomes the limiting factor at this point.
And don't forget that this arm has greater "leverage" than conventional linear trackers, due to the much shorter travel distance (~30mm vs. 100mm) for the same radius covered.

Cheers,

Frank
  Reply With Quote
Old 28th November 2013, 04:05 PM   #580
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: OC,Calif.
This "forward pull" is an added feature along with the bearing arrangement already present.
I,m trying to wrap myhead around how say, an air bearing doesn,t have this feature even though you place the 30mm vs 100mm in the same camp.
Their in different camps. One has no friction (air) across the record and yours needs considerable friction (bearings and forward arc) to accomplish the same thing in its 30mm requirement
Your design is very clever and would love to hear it someday.

Regards
David
  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
String suspension vs. uni pivot or gimball tonearms nghiep Analogue Source 26 13th August 2011 04:27 AM
90+90 volt rails east electronics Solid State 42 5th April 2011 01:38 PM
Angling drivers left and right in a vertical line-array???? ozziozzi Multi-Way 12 16th January 2009 04:23 AM
Tangential Arm Floating Magnets ebijma Analogue Source 8 6th December 2004 06:37 PM
Need Amp For 90-0-90 V DC Drafance007 Solid State 15 12th October 2003 08:03 PM


New To Site? Need Help?

All times are GMT. The time now is 02:47 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