Από: Dewald Visser [
[email protected]]
Αποστολή: Δευτέρα, 2 Απριλίου 2007 8:43 μμ
Προς: President of A.C.A.
Θέμα: Re: Hand-made turntable - D Visser
Dear Mr Skaloumbakas,
Thank you for the reaction on the e-mail I sent you.
The development of my turntable, the Moxey, started in July 2006 when I was invited to a audio expo in Johannesburg. The invitation cam when a local forum member (and owner of Vinyl South Africa) saw a picture of a tonearm that I made from balsa-wood for my Lenco L75 turntable. I told him that I would rather make my own turntable to demonstrate the balsa arm as the Lenco had too much rumble.
I drew up a design and had a prototype made by a local engineering facility. The platter and plinth is milled from hard, industrial nylon. The main-bearing shaft is milled from stainless-steel and the bearing bushes from a 'space-age' plastic developed in South Africa. This ensures a free running platter with extremely low rumble or stray movement. The platter and plinth each weigh 7kg. The turntable is non-suspended and is coupled to the 'ground' via 3 solid brass spikes. The machine can accommodate up to 3 tonearms via my special tonearm brackets. The platter is driven by a 250rpm AC synchronous motor - not ideal but the speed is super-stable.
I plan to manufacture these units on an order-only basis and it will be tailored to the clients specific taste. The production models' plinth and platter will, in the future, be cast from a special cocktail of resin, marble, lead, glass particle and wood particles. At the moment I am struggling to find a place to CNC the molds for the two parts. The molds have to be 100% correct when casting. I have also designed a super-ridged titanium tone-arm but alas! The design is too delicate for local engineers to manufacture.
For now I keep on studying the wonderful world of analogue audio. I want to work on a design for a electrostatic pick-up cartridge.
Best regards,
Dewald Visser
President of A.C.A. wrote:
Dear Dewald,
Send the pictures attached but please send me some description notes as well. I figure a good place for that will be the
http://aca.gr/turntable_diy.htm
Another way will be to upload it in our Forum Photo Gallery @
http://aca.gr/forum
Regards
Christos Skaloumbakas
