Eminent Technology ET-2 Tonearm Owners

Hi frogman, yes it seems so. But think about a "normal" mount on a rectangular base:
The arm is mounted "precisely" and travels exactly parallel to two sides of the plinth. Correct tracking then runs on a line exactly parallel to the sides, crossing exactly the platter bearing. This is achieved by the correct "overhang".
Assuming now the arm is slightly twisted (as seen from above) and runs at an angle to the sides. The tracking line then will be twisted the same, but if it shifted by correcting the "overhang" to cross the bearing again, it tracks as correct as before,
Twisted clockwise the overhang will be a bit less, twisted anti-clockwise it is a bit more than with "correct" parallel mounting.
 

Yes frogman, it should be close to flush but I might cheat it a wee bit (since there is allowance on the other end of the spindle tube) to correct Brad’s problem rather than alter the queuing eccentric setting unless it is far off. I seem to recall messing with the queuing eccentric once and wishing I hadn’t.

I have not forgotten where I learned a great deal about the ET Two... ;)

Dave

Dave,
 That was indeed the problem, that issue looks solved.
Thanks, you have been more than helpful and really appreciate it!

It looks like you can't post photos, only add a link?
-Brad

Great Brad! Let us know how that baby sounds!

In order to post pics, you have to either transfer them to your favorite online pic depository and then link it to a post using the "Insert URL" tab above the post or simply create a Virtual System page here on Agon and upload your pics. The latter is my recommendation and very easy once you get the hang of it.

Dave

Hi Guys
Been enjoying July Weather in Sept/Oct; which is ok since we never got July weather in July here this year. :^(
So still in outdoor mode floating on the water (not the air) and maybe a track session again one day if the Gestapo ever hands back the keys to me again :^(
Something about not being able to collect on Life insurance ?

Anyway - some interesting talk on achieving alignment. Got me re-juved reading.
  
Noted the suggestions for moving the ends of the spindle (Joint - aka as Gooseneck) and/or the end cap to get the stylus to drop into the lead in groove.
    
The larger newer 2.5 is built tighter and the ends of the spindle have sleeves which make the gooseneck and end cap flush with the spindle. There is only one way to mount it - tight. So if the hole that was drilled to mount the tonearm was less than perfect and you are faced with an armtube that doesn't come in to the lead in groove - the Cueing Eccentric adjustment would be probably the only way unless you are going to drill another mounting hole.

btw - Bruce used to provide the service of upgrading your 2.0 to a 2.5. You send him your 2.0 spindle and manifold and he would return a bored out 2.5 version at reasonable cost. He may still do this. 

Re: Alignment
If you are using a full plinth with no armboard, and it is going to need one hole drilled to add the tonearm; the task at hand can get more than a little daunting. Especially if you are dealing with an expensive handcrafted plinth.

After mounting the ET 2.0 , 2.5 maybe 60-70 times on 5 or 6 tables...During a Serious bout of Audiophilia Nervosa Mode years ago ....... 8^(.....I can say let's not over complicate this. We are not after all trying to mount a pivot arm.

All you need is a straight line from the middle of the spindle to the end of the platter (ANYWHERE ON THE PLATTER) This straight line should track the line (path) your stylus will take. With the air pump on make adjustment making sure your stylus will land - without it actually touching - the line on the jig. This is easiest done when your ET 2.0 - 2.5 is mounted on a standalone or pivoting pillar/pod.  

Past VPI HW19 MKIV and TNT tables with the ET2 revealed to me that the holes drilled by VPI were less than perfect. Maybe it was hit and miss with my examples ? Test your tables. Does your stylus when placed on the jig near the beginning still remain on that straight line at the end of the road ?

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Xbart - Brad - welcome to the thread.
Amazing what can be found at a US of A Garage Sale ...... EH
Real American Pickers.

Have you messed with the horizontal VTA Pillar bolts yet ?
It is my opinion that these should have come from Bruce' factory with plugs in place preventing adjustment....AND....a special section in the manual dedicated to them with the caption "for experienced users only"

I am pretty sure everyone here has used those VTA Pillar bolts in the beginning of learning setup to make the stylus "Walk The Line" - thereby messing up the ET2 VTA alignment. The only manual mention I recall is adjusting them for the tension felt in the VTA lever. This is an over sight IMO as Audiophiles will always tinker and can't leave well enough alone.
   
The mention of plugs for the VTA pillar post bolts...... reminds me of an incident this past summer involving a friends boat with a Volvo Penta i/o engine, with Holley carb. The friend had a rough running engine on this boat he bought. When we investigated we noticed someone had taken the plugs out the carbs' two metering bolts on each side, and tried to adjust them. We suspected something got messed up in their settings.
Long story short - Holleys are way too sensitive to do adjustment of the metering bolts by ear and watching the tachometer. To do it properly required the use of a Vacuum Gauge, sort of like the air pressure gauge used by the ET2. The vacuum gauge showed that the setting were way off.

Hope this post finds everyone well. Soon it will be cold and activities will commence indoors including running. My knees are taking a beating with age. I find now to run without pain I need to be running on an uphill incline so that my knees are loaded. This means treadmill. :^(

Hi Harry - read your note about v2 of the Long I Beam. Need to reach out to Bruce.

Cheers Chris

Happy Canadian Thanksgiving to everyone.