New Solid Aluminium Platter for the SL1200

Hi Mike,

I only posted the pics as a rough visual guide for Marco, who spends more time listening to music via his deck than taking it apart to see how it works.. :lol:

The 1500/150 mk1 motor unit was a much earlier simplification of the SL110/120 motor and has much lower torque, although there's no servo overshoot and with the stock platter and mat, no slowing under load as measured by HIFI Choice at the time on the SL1700.

TBH, I think the instant start and stop was seen as a bit of a gimick in the domestic market at the time, although it's comong into its own now.

Good luck with the platter.

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Originally Posted by MartinT

Hi Chris

It's difficult for me to separate the Copper mat's performance because, without it, my arm won't quite go low enough to set accurate VTA. What I can say is that the arm + mat combination gave me a huge step up the 'realistic' ladder, portraying the soundstage and musicians in a very natural way with no tonal colouration and greatly expanded dynamic range.

If Mike's platter does the same thing then it's going to be a winner.

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Thanks Martin .

Hi Mike

As i understand it then there is no need to change the psu to the HE version ? .

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I only posted the pics as a rough visual guide for Marco, who spends more time listening to music via his deck than taking it apart to see how it works.. :lol:

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'Tis true, dafty-boy - I care not a jot about the latter. I let my 'chosen people' worry about that bollocks :)

Marco.

The trouble with online shopping is that everyone has to pay the same price for these things. No trade-ex trade discounts here :(

Tell you something Marco. I've been practising my soldering muchly these last few weeks, "Dada" re-capping a Quad 33 (and learning which way round Zener diodes go :scratch:), and re-learning how to carefully solder those god-awful DIN plugs. I've done a pretty fair job I reckon and am wondering if this may lead to some proper DIY work......

It's only a confidence thing, when all's said and done - needs must when you have a low disposable income for whatever reason ;)

chris@Panteg,
You are correct there would be no pressing need to upgrade to the new version, and I must say that the KAB unit will also perform OK with the new platter as well, for those who have this unit. The new TimeStep power supply does have some distinct improvements which I approve of, such as a much sturdier DC power supply cabling, and I believe higher max current capability, among others.

I am presently using 3 copper mats (just got a third one from Larry) for a total platter weight of some 15 pounds and driven by the switching KAB power supply with the Mike New bearing. On top, is the recent version of the Oracle mat.

Their is no problem at all turning 15 pounds of platter and Mike's bearing handles the weight without any apparent issues, as the platter continues to rotate with great ease.

I would use Mike's new platter with the 3 copper mats for a total weight of some 24 pounds or so. I do not expect any problems with that much weight. (Brinkman makes a DD drive turntable with a 10 kg platter for the price of a $20,000 + car if I am not mistaken; only thing missing is a 15 kg plinth....)

Presently, using some 15 pounds of platter renders a very solid deep bass, lots of air & detail and wide & deep soundstage. The flywheel effect no doubt contributes to the sound, as I get more information from the record.

Hi mate,

Nice one :)

Two questions, though... What's your name? Oh, and who is Larry? :scratch:

Marco.

My very basic understanding of how DD works is that you don't want a flywheel effect ? or do you .

Is it not true that you want the mass concentrated around the magnet rotor , not at the periphery of the platter ? .

Perhaps Mike ' can enlighten me here .

Chris, any idea who the Larry was 'Citation 16' was referring to? He seems to have gone before answering the question I asked him....

'Citation 16', I need your proper first name, so please supply it and add it to your signature at your earliest convenicence - cheers! :cool:

Marco.

Don't know who Larry is Marco but i should imagine the guy will be back when Canada wakes up .