Ariston RD11S - convert from 120v 60hz to 120v 50hz

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Ireke
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Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Ireke » 20 Oct 2019 22:51

Can anyone suggest how I can convert the Ariston RD11S from 120v 60hz to 120v 50hz ?
I am told that I may just need to change the pulley but I am not sure about this. Can anyone help with this ?
Thanks very much.

ralphfcooke
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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by ralphfcooke » 20 Oct 2019 23:35

You should change the phase capacitor as well as the pulley, there is no info regarding this in the Ariston manual, but the Linn Sondek used the same motor, and they indicate that the capacitor should be swapped from 0.22uF to 0.18uF.
I suspect that finding a replacement 50 Hz Linn pulley may also be easier.

See page 8
https://www.vinylengine.com/library/lin ... ndek.shtml

Good Luck

Ireke
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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Ireke » 21 Oct 2019 00:20

Hi Ralph,
Thx very much !

Chiltern
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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Chiltern » 21 Oct 2019 00:23

It might be easier to get a pulley machined. The RD11S uses a clutch mechanism to aid start up but it does mean that the pulley is easy to remove.

Put a request in the wanted section for a 50c/s pulley, unfortunately I no longer have one to measure..

IIRC, and I can check as I still have Ariston and Linn turntables, apart from the very early RD11 models, the Ariston inner platters are slightly dimensionally different to the Linn, hence a Linn pulley might not give the correct speed. Back 10 years, I modified an RD11s to use a Linn inner and bearing and ended up changing the motor and pulley to Linn to give the correct speed.

Pic of a RD11S pulley (uploaded in 2009)

8439

Alan

Ireke
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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Ireke » 21 Oct 2019 01:32

Thx Alan. Will proceed accordingly !

Ireke
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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Ireke » 21 Oct 2019 01:37

Thx guys, while I am at it, can someone recommend a suitable cartridge for the Mayware Formula 4 mk 3 arm which is currently on the Ariston ?
Or would you recommend another arm and cartridge ?

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Re: Ariston RD11S - convert from 120v 60hz to 120v 50hz

Post by Coffee Phil » 21 Oct 2019 04:09

Hi Ralph,

I hate to come off as nit-pickey here, but I believe that the larger capacitor goes with 50 Hz. To confirm I checked the link which you provided and it confirms what I thought.

Phil

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