cartridge alighnment help.

[white noise]

Hi

I have just used the baerwald arc projector to set up my dynavector 10x5 on a rega rb 300 arm all went fine but the cartridge is further forward than at was before . Does this look odd ?

 

[wer]

If the sapphire (or does it have already have a diamond?) follows the arc perfectly, you are doing ok.

 

[Hi Five]

My goldring is pretty forward using the Baerwald protector on my Rega arm.

 

[glowingtones]

I use a Goldring on a Tecnoarm and it looks just like yours using a Baerwald instead of the with the Michell protractor. I stuck with the Baerwald.

 

[white noise]

Thanks,just what i wanted to hear. It just proves how far out i was using the rega protractor and a ruler for the over hang!

 

[ridley]

Thanks,just what i wanted to hear. It just proves how far out i was using the rega protractor and a ruler for the over hang!

The Rega uses Stephenson alignment geometry as far as I know, this will result in the cartridge being farther back in the head shell than with Bearwald, that's not to say your not better aligned now.

Also when using an arc protractor as you are, the distance from spindle to arm pivot has to match the distance listed for your particular arm & the protractor.

Cheers

Simon.

 

[white noise]

The Rega uses Stephenson alignment geometry as far as I know, this will result in the cartridge being farther back in the head shell than with Bearwald, that's not to say your not better aligned now.Also when using an arch protractor as you are, the distance from spindle to arm pivot has to match the distance listed for your particular arm.

Cheers

Simon.

The protractor i used is for rega arms with a mounting distance of 222mm.which seems to be most of them. I have seen the stephenson protractor but decided to try this as it seems swings and rounderbouts! Might try the stevphenson in the future but at the moment i am happy with this :^

 

[johnniebaby]

Have you checked that the overhang is correct?

 

[vacdac]

Have you checked that the overhang is correct?

:goodone: +1

I've run a technoarm on my Gyro s.e. (same geometry as the Rega arm shown & that looks all wrong. I have an AT F3iii which in body profile is v similar to the Dyna shown & set up right the cartridge bodys top plate was up to the end of the H/Shell so although pulled fairly far forward to align correctly it didn't butt so far forward of the H/Shell:nup: . The correct overhang from the centre of the spindle to the stylus should be 15mm IIRC......I use a natty little A.T. tool to set this. Also common consensus seems to suggest that you need to use Stephenson not Baerwald (scooooze any typos:roll for Rega arms. I know this came up in a fairly recent thread discussing using one of the 'Uber' fancy set up jigs & it not giving the right results for a Rega arm on a Gyro.

 

[white noise]

Have you checked that the overhang is correct?

Not specifically. The way i see it is when using the protractor if you keep your cartridge aligned it will only follow the arc when the correct overhang is used,that's the point of the arc and this in turn gets your null points... I think ? But i might be wrong ! I usually am :doh:

 

[johnniebaby]

I have a Rega arm, and I use a Rega protractor :roll:

 

[white noise]

:goodone: +1 I've run a technoarm on my Gyro s.e. (same geometry as the Rega arm shown & that looks all wrong. I have an AT F3iii which in body profile is v similar to the Dyna shown & set up right the cartridge bodys top plate was up to the end of the H/Shell so although pulled fairly far forward to align correctly it didn't butt so far forward of the H/Shell:nup: . The correct overhang from the centre of the spindle to the stylus should be 15mm IIRC......I use a natty little A.T. tool to set this. Also common consensus seems to suggest that you need to use Stephenson not Baerwald (scooooze any typos:roll for Rega arms. I know this came up in a fairly recent thread discussing using one of the 'Uber' fancy set up jigs & it not giving the right results for a Rega arm on a Gyro.

I have rechecked and i am set correct for the berwald protractor and it sounds ok,but i will try the stevenson tomorrow :^

 

[wer]

I have rechecked and i am set correct for the berwald protractor and it sounds ok,but i will try the stevenson tomorrow :^

Which one to use depends a lot on the type of music you listen to. For classical i prefer Stevenson, because it minimizes distortion at the end of the record, where you frequently have the final of the piece with the orchestra playing full blast, and distortion ( a la Baerwald's set up) would be quite audible and disturbing..

 

[glowingtones]

Without showing any bias to one method or another there are at least a couple of threads at Vinyl Engine on the subject which I think explain the subject of alignment very well. It may get a little technical at times but I read through it all more than once before I understood what was happening. I won't show bias by saying which method I chose.

The first article is on the subject of arc protractors .

The second article is the one where I discovered the Conrad Hoffman Protractor Calculator which I still use today. The link to Hoffman's calculator is in the 7th entry in the discussion below the article. The calculator uses tonearm parameters available from manufacturer or Vinyl Engine's database, the remaining data is achieved either by defaults or physical measurement. The calculator then prints out a bespoke arc protractor on A4 complete with null points, arc and a reference line of 200mm which is used to ensure printing is 100% accurate in size.

 

[ridley]

Without showing any bias to one method or another there are at least a couple of threads at Vinyl Engine on the subject which I think explain the subject of alignment very well. It may get a little technical at times but I read through it all more than once before I understood what was happening. I won't show bias by saying which method I chose. The first article is on the subject of arc protractors .

The second article is the one where I discovered the Conrad Hoffman Protractor Calculator which I still use today. The link to Hoffman's calculator is in the 7th entry in the discussion below the article. The calculator uses tonearm parameters available from manufacturer or Vinyl Engine's database, the remaining data is achieved either by defaults or physical measurement. The calculator then prints out a bespoke arc protractor on A4 complete with null points, arc and a reference line of 200mm which is used to ensure printing is 100% accurate in size.

+1

Great tool for getting alignment spot on.

Simon.