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Old 8th March 2014, 08:00 PM   #1651
niffy is offline niffy  England
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Join Date: Nov 2013
Location: Brighton
Quote:
Originally Posted by spinning wheel View Post
Hi Niffy , what Rega arm model are you referring to ? RB300 I guess ?
If that's the case I think how to cure the dip \
Paul
Hi Paul.

Any tips from a fellow diyer always gratefully accepted.
The arm is actually an RB250 so I don't know if your tweak will still apply.
The systemdek rega combo is the spare deck that I keep so that I can still listen to music when my main deck is upside down in pieces. It's currently packed away and mods on it are currently low priority. The ball race-pin bearing comparison is number 1 at the mo. It has been my back up deck for many years and has stood in for some classic giants. So has been a-b comparisoned with some of the best. This allows me to indirectly compare my current arm/deck to these giants.

Thanks again for your kind offer.

Niffy
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Old 8th March 2014, 09:43 PM   #1652
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Quote:
Originally Posted by niffy View Post
Hi Paul.

Any tips from a fellow diyer always gratefully accepted.
The arm is actually an RB250 so I don't know if your tweak will still apply.
The systemdek rega combo is the spare deck that I keep so that I can still listen to music when my main deck is upside down in pieces. It's currently packed away and mods on it are currently low priority. The ball race-pin bearing comparison is number 1 at the mo. It has been my back up deck for many years and has stood in for some classic giants. So has been a-b comparisoned with some of the best. This allows me to indirectly compare my current arm/deck to these giants.

Thanks again for your kind offer.

Niffy
Hi Niffy ,

well .. yes and no I was dealing with a horrible RB300 VTF spring oscillation here some time ago , resulting in unstable and dull detail . I decided to remove the complete springdevice , along with an OL end stub + tungsten CW . the results were stunning and brought the arm to much higher level . i.e. previous issues were no longer !

Assuming you are using the same cart as with the Rega ... padding the tweeter a couple dB sounds pretty serious to me
Are you using a stock Rega ? original wiring ? if that's the case , this would probably be the first thing that I would work out .

THX,
Paul
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Old 8th March 2014, 10:59 PM   #1653
niffy is offline niffy  England
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Quote:
Originally Posted by spinning wheel View Post
Hi Niffy ,

well .. yes and no I was dealing with a horrible RB300 VTF spring oscillation here some time ago , resulting in unstable and dull detail . I decided to remove the complete springdevice , along with an OL end stub + tungsten CW . the results were stunning and brought the arm to much higher level . i.e. previous issues were no longer !

Assuming you are using the same cart as with the Rega ... padding the tweeter a couple dB sounds pretty serious to me
Are you using a stock Rega ? original wiring ? if that's the case , this would probably be the first thing that I would work out .

THX,
Paul
Hi Paul.

Don't get me wrong, there's nothing wrong with the rega (it is standard). The rolled treble is minor. It was being compared to decks like the pt anniversary with sme v and ortofon mc3000 (one of the best cartridges ever) and the Townsend rock reference with Excalibur and mc7500. It was only sporting an ortofon 520 at the time. IMHO it beat a Linn sondek ittok, at oc9. Never could stand that much coloration.
As I was using it as my main deck until recently I gave it a hand by not padding the tweeters. That's so not necessary any more. Padding the speakers will just flatten their response (probably closer to 1db than 2). I've got a variety of different arm cables so I'll get around to rewiring one day.
I've just spent another evening plundering my record collection should have been in bed hours ago, early start tomorrow. Oops.
We're probably going off topic a bit here, back to linear trackers tomorrow.

Cheers
Niffy
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Old 10th March 2014, 10:02 PM   #1654
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Join Date: Oct 2005
Default just a few shots ,

of the latest wands I have been working on . the brass inserts are poking out 10MM and 20MM into the carbon rod , press fit with with a tiny drop of locktite
Industrial one second glue ( very rapidly pressed in with a handpress . M3 thread size tapped to secure the line bored headshell . all made on my minilathe which is fun and good exercise at the same time . I even turned the carbon rods to lenght in the lathe haha . I have a couple more wands to do , as I want to try as many as I can , and have tons of material stocked in my workshop so what the heck . aluminum headshell/weight , polycarbonate with a steer horn brass or bronze stabilizer . the building is as much fun for me as the actual listening / comparison to be frank .

more foto's will come later , as I'm pretty occupied these days . but just to show you guys that I'm not sitting on my lazy ***

THX
Paul
Attached Images
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Old 11th March 2014, 05:31 AM   #1655
niffy is offline niffy  England
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Quote:
Originally Posted by spinning wheel View Post
of the latest wands I have been working on . the brass inserts are poking out 10MM and 20MM into the carbon rod , press fit with with a tiny drop of locktite
Industrial one second glue ( very rapidly pressed in with a handpress . M3 thread size tapped to secure the line bored headshell . all made on my minilathe which is fun and good exercise at the same time . I even turned the carbon rods to lenght in the lathe haha . I have a couple more wands to do , as I want to try as many as I can , and have tons of material stocked in my workshop so what the heck . aluminum headshell/weight , polycarbonate with a steer horn brass or bronze stabilizer . the building is as much fun for me as the actual listening / comparison to be frank .

more foto's will come later , as I'm pretty occupied these days . but just to show you guys that I'm not sitting on my lazy ***

THX
Paul

Hi Paul.

Gorgeous finish quality on all you carriage components.

You own a mini lathe! Green with envy, what make is it and have you measured its concentricity?

I totally agree with your last point. DIY. Triple the fun. Fun designing. Fun building. Fun listening. And the joy of knowing "I made that".

Clearaudio deck? Or diy?

Niffy
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Old 11th March 2014, 08:18 AM   #1656
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Beautiful work Paul!,


It is awesome to see the progress and everyone's iterations of the arm. My vote for best sound goes to the upright alu block headshell, but this is a great opportunity for suit to taste because that's what it's all about. The latest lowest slungest counterweight is the best so far, and adds atleast double the stability to the carriage.




Colin
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Old 11th March 2014, 06:21 PM   #1657
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Thanks guys !

I want to check out 5 or 6 different wands with one and the same cartridge . Will also fabricate a few counterweights , different shape and weight , low slung etc.

BTW , some carbon rods are of the thin wand variety , and funny enough they sounds less ringing opposed to the thicker carbon sticks easy to check haha put them into my ear and tapping them with a screwdriver .

My lathe , nothing special or expensive , a Hobbymat , see attachement . I bought it new and only using it for light jobs . sure it's pretty accurate and once in a while using a dial to check , or dead centers kissing methode .

Good eye NIffy that is another project of the many , Clearaudio Emotion which I bought w/o arm . perhaps a nice easy TT to equip with a linear tracker someday soon haha , altough my heavy mass Lenco with remote driven platter will probably be my ol time favorit . I hate flimsy apparatus .. no idea how that comes , it's just that mass drives are providing so much more stabillity in both sound and comfort .

THX
Paul
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Last edited by spinning wheel; 11th March 2014 at 06:24 PM.
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Old 12th March 2014, 05:10 AM   #1658
niffy is offline niffy  England
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Aaaaaahg.

Disaster has struck. My pillar drill has just gone to the great workshop in the sky. I was trying to make mountings for the new rail yesterday when...... I''ll strip it down today to see if it's repairable but the prognosis isn't good. It has been used constantly for years (and in ways that it was never designed for). The pin-bearing/ball race comparison may be delayed a bit.

Niffy
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Old 13th March 2014, 10:08 PM   #1659
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Quote:
Originally Posted by niffy View Post
Aaaaaahg.

Disaster has struck. My pillar drill has just gone to the great workshop in the sky. I was trying to make mountings for the new rail yesterday when...... I''ll strip it down today to see if it's repairable but the prognosis isn't good. It has been used constantly for years (and in ways that it was never designed for). The pin-bearing/ball race comparison may be delayed a bit.

Niffy
You have probably burned out the motor's carbon brushes Niffy .. try to be more polite with the machine .. as you now find out you have lost a friend in hard times

Good luck in getting it back to work , hopefuly .

THX
Paul
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Old 14th March 2014, 08:54 AM   #1660
niffy is offline niffy  England
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Join Date: Nov 2013
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Cheers Paul.

It wasn't the motor it was the casting of the main body that had gone causing the chuck to wobble by a couple of mil. No possible cure. I've purchased a new drill so I'm back on track. If I keep the old drills chuck locked in the fully raised position it doesn't wobble so I'll keep it for lathe type work and the new one purely for drilling. It was this abuse that probably did the damage.

Niffy
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