DIY Air bearing tangent tone arm - Page 15 - 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 2nd March 2012, 02:41 PM   #141
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: OC,Calif.
What is the length from pivot to stylus? If your arm is like a Versadynamics style and very short, you need a vacuum platter seriously or bass response will be a mess and consume most of your amplifiers power
For starters, is your cartridge mounting platform parallel to the record surface? Most cartridges but not all!! Get VTA in the proper range when in this arangement.
If the back of your cart. Is higher that the front side, then this tips the VTA balance to the higher frequencys and the opposite etc.
Have you made any other changes to your system that might have an impact?
I also have an ET1 and ET2 arms with subs and bass is deep and tight, but requires proper handling of setup compared to pivoted arms
If you have any 60 cycle hum from your phono stage this will also rob you of bass potential.

Regards
David
  Reply With Quote
Old 2nd March 2012, 09:03 PM   #142
diyAudio Member
 
Join Date: Sep 2011
Yes the VTA is significantly off, with the cartridge tilted forward (slopes up from front to back). I'll try dealing with that first. So the consensus is that this is probably the issue? Or are there other ideas?
  Reply With Quote
Old 2nd March 2012, 09:24 PM   #143
diyAudio Member
 
Join Date: May 2003
Location: UK
Quote:
Originally Posted by fmelindy View Post
Yes the VTA is significantly off, with the cartridge tilted forward (slopes up from front to back). I'll try dealing with that first. So the consensus is that this is probably the issue? Or are there other ideas?
I think you know with 90%+ confidence what the issue is.
  Reply With Quote
Old 3rd March 2012, 01:59 AM   #144
diyAudio Member
 
Join Date: Sep 2011
Yes, that seems to have made a large difference
  Reply With Quote
Old 3rd March 2012, 03:22 AM   #145
diyAudio Member
 
Join Date: Sep 2011
By the way, how critical is it that the holes be 0.3 mm? I just noticed that mine are larger than that and i do get a fair amount of hiss... is that why, you think?
  Reply With Quote
Old 4th March 2012, 10:05 PM   #146
diyAudio Member
 
Join Date: Sep 2011
Quote:
Originally Posted by fmelindy View Post
By the way, how critical is it that the holes be 0.3 mm? I just noticed that mine are larger than that and i do get a fair amount of hiss... is that why, you think?
Well, I'm learning as I go for sure! I just remedied this as well and made sure that all holes are exactly 0.3 mm and that they all have the same level of air flow and that made a HUGE difference. It made a huge difference not only to the sound of the music but to the sound of the arm - it's virtually silent now with no hiss and far less air flow needed. And the bass is back!

To any newbies or people trying this for the first time... don't cut any corners, do it right the first time! At least then you'll be able to content yourself that the flaws in the sound are not the direct results of flaws in your construction. Make sure:

1 - you have no air leaks anywhere
2 - your holes are drilled properly and are of the proper size (double check your air flow!)
3 - your carrier is level and stable
4 - you use a smoothing tank
5 - your arm wand allows you to parallel the cartridge to the record surface precisely
6 - your wiring is very limp and light (and using the gantry to keep the wires elevated is a good idea)

I'm by no means an expert mind you, these are just the issues I had to confront when I was building the arm!
  Reply With Quote
Old 15th May 2012, 02:11 AM   #147
toptip is offline toptip  Turkey
diyAudio Member
 
Join Date: Dec 2004
Location: Istanbul
Default Tangential arms

All linear tracking arms I have come across either use a mechanical pull or a compressor / air tube combo or, very rarely, some magic glass which supposedly has no friction (there is at least one, Swedish I think). These all have drawbacks, mechanical ones can produce a "thump" noise, air bearings get dirty, compressors are noisy, etc.

What I have never seen is a magnetic levitation arm, meaning a piece of ferrous metal floating in a magnetic well where it is repelled from the bottom, the back and the front with some electromagnetic system. Why would this not work, they build trains that levitate?

Or may be it already exists?
  Reply With Quote
Old 16th May 2012, 08:42 PM   #148
diyAudio Member
 
Sourdingue's Avatar
 
Join Date: May 2010
Location: souht of france
Good evening, I took the post in progress and will share my experience perssonelle. I realized a pneumatic tangential tonearm, the largest Difficulty is to reduce the noise airflow, for my part of the solution was to make drilling tube to 0.2 mm at a pressure of 0.250 bar (flow is adjustable by a limiter) ....
I found the manufacturer of the tire fitted to the socket "kuzma" I considered this option early, then I left ... because the price is high and above the pressure needed for proper operation is much stronger which leads to greater problems of residual noise reduction ..
(sorry for my bad english ...)
Attached Images
File Type: jpg DSCN0385.JPG (227.9 KB, 458 views)
File Type: jpg DSCN0286.JPG (162.9 KB, 437 views)
File Type: jpg DSCN0414.JPG (185.5 KB, 427 views)
File Type: jpg DSCN0331.JPG (239.7 KB, 425 views)
  Reply With Quote
Old 18th May 2012, 06:17 PM   #149
diyAudio Member
 
Join Date: Mar 2007
Default hole spacing

What is the spacing used between each hole? Do you use just one set of holes along the top of the tube?
  Reply With Quote
Old 19th May 2012, 09:41 AM   #150
diyAudio Member
 
Sourdingue's Avatar
 
Join Date: May 2010
Location: souht of france
Quote:
Originally Posted by drumdoctor View Post
What is the spacing used between each hole? Do you use just one set of holes along the top of the tube?
hello,the spacing between holes is 6mm and only on the top which is quite sufficient..
  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
Looking for Audax bextrene driver for Tangent RS6 dcanuck Multi-Way 4 2nd November 2011 11:30 PM
Tangent's ground channel w/o buffer morfic Solid State 17 2nd August 2009 04:20 AM
Tangent RS4 Speakers - free happyju Multi-Way 0 14th April 2008 03:50 AM
Tangent Monitor 6 upgrade SimontY Multi-Way 8 6th February 2008 10:24 PM
Help with Air Tangent problem arnoldc Analogue Source 3 21st June 2004 05:28 AM


New To Site? Need Help?

All times are GMT. The time now is 11:24 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