New Maplenoll Ariadne owner needing advice

The letter from Lloyd highlighted three key areas for performance improvement. I will work to scan the document to make it available via email. The first tweak was to firmly attach a brass threaded rod to the "brass cones" or feetand then tighten until the cones will not turn. This should strengthen the support system. The cones are set into lead disks. The right front cone is the one used for level adjustment. The second tweak is focused on improving the damping from the pump to the arm/platter. Lloyd recommends using the a plenum(resonance chamber) for the airpump discharge then splitting the flow to the platter and arm. The line going to the arm should be very long and should have an additional resonance chamber. The implication is the arm is much more sensitive to pressure fluctuations. I heartily agree with this approach based on my experience with directly hooking up a "too small" compressor to the system with the single plenum in the pump discharge versus using my "shop" air compressor which has a very large surge tank and pressure regulator to smooth out the pulsations. The performance of the arm dramatically improves with the higher pressure and use of the additional plenums. I also recommend installation of a pressure regulator between the pump and the plenums. The air line going to the platter should have a needle valve to maximize the air pressure to the arm. The final tweaks involve stiffing the tone arm connection to the VTA adjustment bracket. These tweaks include installing a bottom plate on the vta adjustment bracket, epoxy the top plate, trim the plastic plug in the back of the tonearm such that the metal part of the arm contact the vta bracket. Once adjustments for VTA are optimized, then actually epoxy the back of the arm to the vta bracket. This approach is meant to stiffing the system. The final tweak is dependent on the nature of the counterweight arm. If it is hollow, fill it with Mortite. Again I will try to scan the document and attach since the letter has some drawings that help one visualize the tweaks.

As for the vintage of the table, Greg informed me that the original owner was a person affilated with Absolute sound and he was the second owner.

Right now I am just enjoying the table as I have recieved it but I will implement some of the ideas that others have successfully completed. My first priority will be to adjust the lead platter as it appears during the shipment process, the platter was banged up a little. Being a solid lead plate should make this pretty easy. I have already smoothed out the platter so the record lies flat and the bottom does not rub but i do hear a little rumble near the damaged section of the platter when i lower the pressure to the platter air bearing. As the pressure is increased the rumble virtually disappears.
Thanks again for the ideas.

sounds like I've already done all of Lloyd's suggestions. I had gotten my 'noll new from Bob Dilger and had quite a lot of input about it both from him and Pierre and Lloyd, all of whom are friends of mine. I've used super glue rather than epoxy and my VTA bracket is machined out of solid aluminum with an integral bottom plate. Filling the counterweight tube with mortight was the first tweek I did. I had forgotten to mention it as it was so long ago.

Piedpiper : Initially , I filled the counterweight with mortight . Later, opting to remove the mortight repacking the tube with cotton pipe cleaners. The pipe cleaners allowed for damping the tube to suit my taste -- Four trimed , densely packed pipe cleaners appeared to be just right for me. Thanks to you and oilmanmojo for sharing a mother-lode of useful information.

Crem1,

you're nuts!

Of course, you knew that but...

Seriously though, what did you notice with your variable pipe cleaner damping?

Piedpiper : I found that filling the tube with mortight affected tonearm/cartridge compatibility.

To me the compliance factor changed perhaps because the total effective mass had been altered. For instance, Grados did an accelerated "Grado dance" and my Aq 7000fe sounded strident ,as did my dynavector and a slew of other pickups. By changing from mortight to compressed natural fibers ( in my opinion ) gave me more options -- damping varients which returned my TT to audio-heaven . Generally, most published material on the subject suggests tonearm/cartridge resonance issues revolve around the front of the tonearm. However, when you are dealing with with an "L'-ish" styled linear tracker supported by air bearings & effectly floating on air, weight/damping issues from either the front or back maybe a problem. I took note of the fact that it appears L.Walker maybe attempting to eliminate the above by his use of a air bearing tonearm design that is in open architecture , that can be viewed/copied from web pages on the internet for diyers. Good for LLoyd.

Am I crazy ? Yes sir I plead guilty as charged. But so is Pierre , LLoyd and lots of others. As you are a friend of Pierre do you reside nearby ? Should you know the name Ejazz than you know the audio-heads that make up the crowd. Some of those Kats don't think nothing of dropping 15 to 20K in a blink and trashing the rigg if they find a "better one" . Me I'm different . I try to squeese every ounce of sound out of what I own . To that purpose I reserve a few hours everyday to read Audio stuff and having done so for 28+ years. That doesn't make me smart just ahead of the curve.

Frankly, as far as I am concerned you can spend a Kilo bucks and not get one ounce more than a tricked out 'Noll. Crazy...Yep like a fox. Oh, if your really nuts try a Shun Mook record weight. Worth every $$$$. Cheers