AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem?

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BoydLee
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AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem?

Post by BoydLee » 05 Mar 2019 23:21

I am UK based and have just bought an AR turntable from USA that has a hurst 115v 60hz motor in it model 3001-001.

The person that i bought it from said that it used to work but now the speed of the motor varies. When i checked, firstly i noticed that the pully is slipping on the existing motor shaft.

Secondly - the existing motor (115v 60hz motor in it model 3001-001) also vibrates when the deck is switched on (uk 230v 50hz). I found a 230v 60hz motor from https://www.alliedelec.com/product/hurs ... /70290249/ over in usa with a model number 3001-005

Will i need just the 230v 60hz model number 3001-005 to fix it ?

Please can anyone advise?

Thank you

I tried previously to have a phone consultation with Dave but our time zones and google chat systesm were not so good. He kindly refunded my consultation fee and asked me to post a question here. Thanks Dave.
Boyd
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Chiltern
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by Chiltern » 06 Mar 2019 00:29

Welcome to VE

Your AR deck has a synchronous motor, the speed will be slower on 50c/s supply, you will need an appropriate pulley.

Have you modified or adjusted the deck to run on 230v, ie using a transformer or changed the wiring/power supply.


Alan

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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by ROY_H » 06 Mar 2019 13:10

I have a UK motor, pulley and driver board which I took (working) off mine when I swapped to an Origin Live DC motor.


If interested we can discuss a price posted. It will need some wiring work so be sure you feel confident working with mains connections !

cafe latte
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by cafe latte » 06 Mar 2019 14:19

Chiltern wrote:
06 Mar 2019 00:29
Welcome to VE

Your AR deck has a synchronous motor, the speed will be slower on 50c/s supply, you will need an appropriate pulley.

Have you modified or adjusted the deck to run on 230v, ie using a transformer or changed the wiring/power supply.


Alan
Or buy a 12 plug pack and an inverter of the correct voltage so home mains goes to 12vdc, then to inverter and converted to voltage you need with the frequency you need and this costs very little.
Chris

BoydLee
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by BoydLee » 21 Mar 2019 22:37

Hello Alan,

I've not modified anything yet. The person i bought it from said it used to work fine here in the uk then it started altering it's speed, Initally i thought it may be the pulley that was loose on the shaft. When i plugged it in and switched it on, the motor rotates but judders/vibrates. When i looked at the motor (115v 60hz) i came to conclusion that perhaps i need a new motor. However do you mean get a step down transformer as caffe latte is suggesting and then step it up again?

Boyd
Chiltern wrote:
06 Mar 2019 00:29
Welcome to VE

Your AR deck has a synchronous motor, the speed will be slower on 50c/s supply, you will need an appropriate pulley.

Have you modified or adjusted the deck to run on 230v, ie using a transformer or changed the wiring/power supply.


Alan

Chiltern
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by Chiltern » 22 Mar 2019 10:04

Boyd

you may be right that it need another motor, but if it worked here in the UK before, was it modified to work elsewhere?

Most motors of the type used in this era belt drive decks are 110v, see picture, for higher voltage working a simple circuit reduces the 240v using a resistor/capacitor circuit. Some, have a wiring change over for different voltage, but all require different pulleys to accomodate 50 or 60c/s running.

If you can, post pictures of the motor and circuit board, capacitors may need changing simply due to age.

Alan
ASIDSCN6545.jpg
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Chiltern
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by Chiltern » 22 Mar 2019 11:53

I cannot find any information in the Library relating to AR service or wiring diagram.

you may care to look at the Ariston RD110 or 80 operating manuals which give an idea of the circuits used for 110v and 230v operation using a 110v motor.

Alan

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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by derspankster » 22 Mar 2019 14:50

Will this help?
motorwiring.jpg
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Chiltern
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by Chiltern » 22 Mar 2019 17:11

A similar circuit to the Ariston and many others, the .25mfd the phase shifting capacitor.

In the Ariston a 10 k resistor is added in the common line (blue wires on your diagram) to reduce the 240v to 110v for the motor. Boyd is there anything like that in your circuit or more capacitors (there are other ways of reducing the voltage). C2 is just a spark suppressor.

Alan

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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by kingpin1935 » 22 Mar 2019 17:47

I had a similar problem when I bought a Minolta film scanner from USA.Mains voltage in USA is 110volt versus 240V here in uk.
The simplest fix was to buy a 240 to 110v transformer.It works fine.

BoydLee
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Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by BoydLee » 10 Apr 2019 21:37

Thanks Alan,

Sorry for the delay, been offline for a few weeks.

I think you're right - "If you can, post pictures of the motor and circuit board, capacitors may need changing simply due to age."

I'll get some picture posted for others too and hopefully compare it to the diagram posted below.

At least two people have recommended some form of stepdown transformer - I may try this route, but first i'll post what is in the AR and go from there. No rush! It will sound great when that record goes on.

At this rate, perhaps another month and it should be up and running. Thanks everyone.
Chiltern wrote:
22 Mar 2019 10:04
Boyd

you may be right that it need another motor, but if it worked here in the UK before, was it modified to work elsewhere?

Most motors of the type used in this era belt drive decks are 110v, see picture, for higher voltage working a simple circuit reduces the 240v using a resistor/capacitor circuit. Some, have a wiring change over for different voltage, but all require different pulleys to accomodate 50 or 60c/s running.

If you can, post pictures of the motor and circuit board, capacitors may need changing simply due to age.

Alan

ASIDSCN6545.jpg

BoydLee
England
Posts: 4
Joined: 05 Mar 2019 23:10

Re: AR turntable in the UK has 115v 60hz motor & does not like uk230v 50hz - will a 230v 60hz hurst motor fix my problem

Post by BoydLee » 10 Apr 2019 21:47

Chiltern wrote:
22 Mar 2019 17:11
A similar circuit to the Ariston and many others, the .25mfd the phase shifting capacitor.

In the Ariston a 10 k resistor is added in the common line (blue wires on your diagram) to reduce the 240v to 110v for the motor. Boyd is there anything like that in your circuit or more capacitors (there are other ways of reducing the voltage). C2 is just a spark suppressor.

Alan
I'll check and post photos as soon as i can. Thanks Alan

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