Ariston RD40 turntable help

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gcodrutv
Ireland
Posts: 3
Joined: 19 Aug 2019 08:40

Ariston RD40 turntable help

Post by gcodrutv » 21 Sep 2019 20:37

Hi all,

I'm pretty new on this forum and need some advise and guidance.
I recently acquired a Ariston RD40 in pretty decent condition.
Due age and how was stored, some of the aluminium parts were showing that they need some cleaning and polishing.
All parts have been carefully dismantled and placed in labeled boxes.
The frame received new coat of paint and all aluminium parts have been cleaned.

During the restoration process, I noticed that the back leg spring is different form the front ones and entire frame is not sitting aligned. It seems that this spring is stronger than the other 2.
Also I found a shaft that was mounted near 8 o'clock where I presume it supposed to be some counter weight to compensate the wight of the arm.
The power supply seems to be replaced with new components.


It would be advisable to do the following upgrades/modifications ?

1. replace existing springs with brand new Linn LP12
2. add new weight to balance the suspended frame (about 750g)
3. add some 5mm rubber/cork under the platter (sounds like a church bell)

The tonearm is SME 9003 II improved version that I'm planning to add a Ortofon Super OM 10 (I was hoping for 20,but spent too much money).

Alec124c41
vinyl engineer
vinyl engineer
Canada
Posts: 23098
Joined: 28 Oct 2002 03:24
Location: North of Toronto, Canada

Re: Ariston RD40 turntable help

Post by Alec124c41 » 21 Sep 2019 22:29

The back spring is stronger to deal with the weight of the tonearm.
The level of the platter should be adjusted to about 5mm all around, by tightening or loosening each spring.
The platter alone will ring, but with a mat on it, should not. You can still add something to the bottom of it, but 2 or 3 millimeters should do.
The OM-10 should be good, and easily upgraded.
I don't know about Linn springs or the counterweight.

Cheers,
Alec

gcodrutv
Ireland
Posts: 3
Joined: 19 Aug 2019 08:40

Re: Ariston RD40 turntable help

Post by gcodrutv » 21 Sep 2019 22:46

Hi Alec,

Thank you very much for your reply.
The counterweight rod is in the same line with the arm and I tried to add some weight and the chassis balanced.
I presumed that the platter should press on all 3 springs with the same force.

Also I just tested the arm wiring and I seems that one of the cables is interrupted.
Any tonearm wire recommendations ?

Thanks
Gabriel

Alec124c41
vinyl engineer
vinyl engineer
Canada
Posts: 23098
Joined: 28 Oct 2002 03:24
Location: North of Toronto, Canada

Re: Ariston RD40 turntable help

Post by Alec124c41 » 22 Sep 2019 15:01

There are other people more qualified to advise on tonearm wiring. I'm not.
The springs are adjustable level the platter and set correct height.

Cheers,
Alec

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