My new Record player

[mikeyb]

I thought the Garrard SP25 I heard at the same time I demoed this sounded better, mind you it did have a decent cartridge on it






I was tempted by this TT ages ago, be interesting how it sounds, it certainly looks great and I’m sure it’ll be awesome

[walpurgis]

I thought the Garrard SP25 I heard at the same time I demoed this sounded better

I had my share of those. Horrible rickety, clattering things with a joke main bearing that could have come off a toy car.

[Barry]

I had my share of those. Horrible rickety, clattering things with a joke main bearing that could have come off a toy car.

When I had one (my first deck), I disabled the arm return mechanism, and would cue the arm by hand.

I thought the main bearing of the SP25 was pretty good: mine would take ages to slow down to a standstill once switched off and the idler wheel disengaged. But obviously not in the same league as that of Al's splendid new TT.

[high.spirits]

Some technical info

Please dont shoot me as i'm not that technical , will try and explain in my best AudioAl way

The TT has a speed control box with a rotory dial

10 o'clock is standby

12 o'clock is on 33.3 RPM

2 o'clock is 45 RPM

Also the unit has 2 pot's for speed adjustment

Also has a seperat box used for on / off of platter rotation

Now this is where it gets clever , The unit has a magnetic driven plater , It's fully decoupled from the drive unit , The drive ( Lower unit ) has 3 motors ( Belt drive ) set at 120 degree's apart

When you look between the drive unit and upper platter you can see a 20 thou air gap , The magnets in the lower drive grip the upper unit and turn the platter

It's quite novel to see this in action , switch it on and the lower drive unit starts to turn , Then a second or so later the upper platter picks up speed , When you switch it off the same happens as they stop rotating at different time's

Will try at a later date to do a video of this happening

That's all for now , Need to get the arm and cart on

A great write up for such a thing of beauty. Thanks for sharing this unique build and setup.

[paulf-2007]

Some technical info

Please dont shoot me as i'm not that technical , will try and explain in my best AudioAl way

The TT has a speed control box with a rotory dial

10 o'clock is standby

12 o'clock is on 33.3 RPM

2 o'clock is 45 RPM

Also the unit has 2 pot's for speed adjustment

Also has a seperat box used for on / off of platter rotation

Now this is where it gets clever , The unit has a magnetic driven plater , It's fully decoupled from the drive unit , The drive ( Lower unit ) has 3 motors ( Belt drive ) set at 120 degree's apart

When you look between the drive unit and upper platter you can see a 20 thou air gap , The magnets in the lower drive grip the upper unit and turn the platter

It's quite novel to see this in action , switch it on and the lower drive unit starts to turn , Then a second or so later the upper platter picks up speed , When you switch it off the same happens as they stop rotating at different time's

Will try at a later date to do a video of this happening

That's all for now , Need to get the arm and cart on

Belt drive? Someone fetch my coat

[Audio Al]

Belt drive? Someone fetch my coat

Yes , A single belt that runs around 3 spiral pully's returning from around the main centre pulley , I have never seen a system like it , These drive the lower platter , Then a magnetic coupling that rotates the main top platter , Quite unique to me

[Columbo]

Not really unique. The drive belt system I've seen used on another deck. The magnetic drive is used on a number of German Transrotor turntables:


https://youtu.be/AQL0BenvO0I

[Audio Al]

Looks very similar in construction , I noticed the nearest modet to my unit is £$£££$£$£$

[Barry]

Come on Al, let's see it up and running and playing music.

(Then you will need to buy some Burmester amplification, with their chrome finish to match the chrome on your new TT. )

[Audio Al]

I needed to get a 1 1/4" box spanner so I could tighten the tone arm nut as the nut is up inside the arm mounting point , collected one today from toolstation ( Marco spends time there as he is a tool )

Also have the use of a SMARTractor Precision Alignment Tool setup unit ( Thanks mikeyb )

I managed to snap the arm earth cable as the horseshoe clip got caught need to solder that back together

Once the arm is fitted , Put the Shelter 5000 cart on and do the setup then MAYBE then its time to spins a test LP
Tears for Fears Songs from the big chair