Power supplies for turntables
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- Опубликовано: 7 сен 2024
- psaudio.com
When purchasing and aftermarket power supply for a turntable, what are the things you should watch for and what makes a good one or bad one? Have a question you want to ask Paul?
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2 points.
I use an outboard stepdown transformer (240-120V Australia) like a naim armageddon for LP12 for my Thorens TD-160 super - lowers the noise floor significantly.
Also, when I was a boy, I used to call someone neither male or female a "middlesex"!
Most of the turntable motors run on AC, but benefit greatly by the same regeneration techniques used in the PS Power Plants. Turn the existing AC to DC, regenerate a very clean and stable AC to run the turntable.
Paul, for dac or turntable, what is the difference using a switched power supply like a computer or a linear analogic power supply, even from an USB cable...? :)
I drive my 1980 Oracle TT with a PS300 regenerator. The belt is almost impossible to change to 45RPM so I just change the frequency to 81Hz. PS Audio has dropped his great feature.
Having heard the improvements a top spec OL DC motor kit made to a Lingo'd Linn, I'm amazed AC motors are still used?
however the more water there is the more pressure and flow there is.
if you ever take the lid off the toilet tank and watch as you flush you will notice as the tank empties the slower the tank empties as it get to the end.
the frequency is only an issue on older ac powered turntables that uses an ac motor.
the newer turntables use a dc motor so their speed is controlled often by a small board built into the motor.
The power comes from the gravitational potential of the water column, ie, the height, not from the volume as such.
They have electricity in Middlesbrough now?
Providing there’s enough kids available to shovel the coal then yes
An external power supply for turntables with ac motors is a must if you are fed up with flipping it over and switching the belt to a different part of the platter's underside everytime you switch from playing a 33 1/3 rpm LP to a 45 rpm record - or 88 rpm shellacs if you are lucky enough to own one. Much more convenient to flip the power suppply's speed selector switch.
I love switching the belt, it is such a conversation starter ;) Heck, the entire cumbersome vinyl experience is !
And it is Even More convenient if the manufacturer is nice enough to include 78.26 RPM as a standard feature.
It doesn't cost much!
I have reached a point where I can no longer tolerate a 'table without 78 And a wide-range pitch control.
@@spacemissing But you have to swap the cart as well every time, or is it dedicated to 78s, or easy swap head shell?
@@Baerchenization
Of course it requires an easy-change headshell.
I have both Dual "TK"s and EIAJ shells set up with carts for shellac discs.
Just quit using a belt drive TT. Go with the times, go direct drive.
How do I connect a laboratory power supply to a old AC Marantz 6150 TT?
my motor of my turntable goes always in top speed (very very fast) what i do? the speed adjusts dont work.
When a power supply is engineered it’s more meaningful to spend the component cost budget on an excellent low noise/ripple design than a design that can deliver much more power than will ever be needed. A too big power supply is a bit like putting a truck engine in your car.
Or just use a traditional linear non-switching power supply. Some common mode filtering on the DC output will do the job.
Hey Paul, does PS Audio do recap and or refurb of vintage gear? I have a power amp id like to have looked at. I live in the Denver area.
I’m using Kronos Sparta turntable, does a good power cord make a difference ? If so copper or silver type cable better n what gauge to be used ?
also very important that the output polarity is same as original one. it could destroy the device if pluss is swapped with minus....
Not if it is a plain DC motor.
The only undesirable consequence there would be it running in the wrong direction.
@@spacemissing Most electronics have some caps in them, and they will start burning within a minute if you do it the wrong way. Trust me. I have fried an usb hub once. It started smoking after a couple of seconds.
@@oysteinsoreide4323
I have worked with electronics (at least some of the time) for over 40 years,
and I am presently doing repairs at a shop.
I know the possibilities. I also know what Won't happen.
OK?
@@spacemissing Then you know that a turntable is not only consisting of an electric dc motor only.
@@oysteinsoreide4323
Some are AC. Some are DC. Some are servo-controlled, which can be based on either AC or DC.
To illustrate the specific point I was making, I want you to get ahold of
a plain (two-terminal) 12 volt DC motor from an old turntable or tape deck.
Connect the motor to a source of 6 to 12 volts DC.
Run it a while, then reverse the connections. What happens?
You don't have to respond.
Paul, the ending of Middlesbrough is pronounced as in "brush" but ignoring the "shh". So it's Middlesbru and unlike Middlesex it is no where near London and all the better for being 200 miles away!
Middlesbruh is how you pronounce it Paul.
It's pronounced middle bog horror 😋 love from Dorsetshire
You must be from Dor sh*t shire
I wonder how many of you identify as “Middlesex”😊
Middlesbrough = Chernobyl
Why not take a minute to check before making the video, instead of just winging it and having a guess? Rega turntables use AC synchronous motors, and need to be fed the proper AC frequency.
Why answer it at all? He should be asking Rega, not Paul.
It's in Paul's anwers at 2.50 ! He only said he's not quite sure about the Rega's, but every Rega owner knows they run with an AC motor.
@@paulb.3227 Yes, he covers himself by giving answers for both scenarios, but why not take literally 60 seconds to get the right answer before hitting record?
Because he has loads a questions to get through in one sitting, and it's not his job to be a technical support officer for other brands. He just offers general advice based on his experiences as an engineer.
@@mrpositronia The question was asking for specific information about a certain model. Instead of taking literally one minute to ascertain an accurate answer, he guessed, and got it wrong.
Pronounced - Middles Ba Ra
Mark Lineham or just Middles Brurr
@@playbackvintagehifihunter9669 yes you're correct, that's how I say it, was just placing it phonetically for those Trying to get their tongue around "Middlesborough"
Basically, we Yorkshire types don't pronounce the whole of 'borough' when it's at the end of a place name.
@@jonathanpalmer155 lol I'm from Whitby Jonathan, I don't suck eggs either, hopefully those that are interested can now pronounce it wonderfully, thanks for your help.
Mark Lineham I’m in Norfolk so we so we have 4 syllables in Middlesbrough lol