Power supply (for Garrard) question

[Bigbird]

Hi guys im looking into different power supply options for my garrard project.

After speaking with James at Whest , he has recommended the VPI ADS supply as one of the best he has come across. It is completely analogue which (apparently) makes it quieter than supplies that have any digital parts in the chain , but im not sure wether it is compatible with the Garrard motor?

Can anybody tell me if they’ve had experience with this or even if it has the sufficient specifications to drive the Garrard motor.

Ive now read up on the usual Monarchy , LDA , CTC , phoenix etc supplies which all seem to be an improvement but this analogue one has got the juices flowing and i like the sound of it.

Cheers

Karl





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[Ali Tait]

I haven’t heard it, but I don’t see how it can be better than the LDA power supply. Providing the motor with the cleanest and most accurate voltage and frequency is surely the most important thing. It’s been specifically designed for Garrards and Lencos.

[Bigbird]

I haven’t heard it, but I don’t see how it can be better than the LDA power supply. Providing the motor with the cleanest and most accurate voltage and frequency is surely the most important thing. It’s been specifically designed for Garrards and Lencos.

Thanks for the reply Ali. I think that is essentially what the VPI does also but it just uses analogue oscillators to supply a clean stable 50hz sine wave( or at least thats how I understood it when I spoke to James) ???.
Also that it has a power output of 15w not 10w .


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[Ali Tait]

Just noticed that VPI spec a max motor wattage of 10w. The Garrard motor is specced at 12w.

[JohnG]

The LDA as said will work with various types of Idler Drive making it very verstile, so if a opportunity arises to use another Idler TT Model the LDA owner can rest assured that they will be supplying it with good matching power supply and exceptionally clean mains signal.
The versatility of the LDA is not limited to Idler Drives, it will have a similar effect on certain belt drive TT's, the list of Belt Drive TT's it has had a noticeable improvement on is growing.
I had the pleasure of talking with a individual on the weekend at the Sheffield Event,
who was informing me it has transformed their TT to another level,
the 'icing and cherry are now on the cake' as claimed, as a result of the LDA being used on their belt drive.

[Bigbird]

This is what James sent me with regards to digital sinewaves. That they are in steps so therefore will be noisier.


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[Patrick Dixon]

This is what James sent me with regards to digital sinewaves. That they are in steps so therefore will be noisier.

Sorry but that is simply not true: the 'steps' are filtered by a low pass filter and the output is an analogue sinewave. Any 'noise' (actually harmonics) would be the result of poor filter design.

If you are able to diy, there is a design available on lenco heaven that works well with my 301. Search for Nigel's Speed Controller.
PS. it's analogue too.

[Bigbird]

Sorry but that is simply not true: the 'steps' are filtered by a low pass filter and the output is an analogue sinewave. Any 'noise' (actually harmonics) would be the result of poor filter design.

If you are able to diy, there is a design available on lenco heaven that works well with my 301. Search for Nigel's Speed Controller.
PS. it's analogue too.

See this is why i come on here to ask/check on all the things i see and here because im about as much use as a chocolate teapot when it comes to electronics. So as you can probably gather from this, a DIY build is not something i would be confident undertaking . Although reading up the NSC seems very popular and doable for about £300 which is fantastic. Most of the supplies i see are in the £8-900 region.


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[Bigbird]

The LDA and Monarchy were top of the list before i had spoken with him so this has now thrown a little spanner in the works . I also liked the idea of the Monarchy audio regenerator as it not only does the clean sine wave but the voltage is adjustable which is also said to be beneficial to the Garrard motors, i think Artisan fidelity use them. LDA doesnt have this feature


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[Ali Tait]

Nick will supply it with whatever voltage you want. Frequency is also adjustable to lock in exact speed, very useful with a Garrard.