A cube with rounded edges and placed in a boole object with two other cubes.

This is a 72 segment tube I selected 12 segments (3 groups of 4 with 20 segments in between) and extruded to the centre.

Another tube.

result of placing each in a hypernurbs object. I had to add more geometry with the knife tool set on loop to square off some of the spokes.

The platter is another tube with a segment added to the centre. This was so that I could chamfer the top half.

A cylinder for the tonearm seating.

Added another cylinder.

I created a bolt with a tube+cylinder with 6 segments (hexagon) and placed both in a boole object. added 3 of these to tonearm seating 120 degrees apart.

The power supply housing is 2 cylinders, one inside the other.

Here you can see I have added some details. 2 bolts I created earlier, the rest are modified cylinders. The power switch is a boole object containing cylinder & sphere. The flywheel is a boole object containing cylinders and torus and I used the power supply housing in a boole object with 3 cylinders to create screw holes.

The feet are made up of cylinders and cones. The spring was created with a circle spline and a helix spline placed in a loft nurbs object.

This is the result.

Once I got my first leg into position I copied 2 more and placed them 120 degrees apart.

This view shows the base raised from the floor.

In this view I have now added, after a lot of messing around my materials.

I used a capsule for the spindle and cylinders for the bearings.
The locking nut that holds the platter is a cone.

The pieces in place.

The logo (Syncro) is a text object thickness around .9, font Helvetica which was compressed a bit.

This is the exploded view of the completed tonearm. The pieces that took the most time were the headshell, tonearm locking mechanism and the tonearm pivot. All started as cubes with a lot of extrusions.
As you can see it is mainly made up of cylinders and tubes but I also used cubes, cones and capsules. The spring at the top right of the view was created in the same way as the spring for the feet. I used this spring in a boole object to create a screw thread at the rear of the tonearm. I would've liked to have gone into more detail but I think it would take another 28 steps.

The tonearm in place. I also created the rubber belt which was a spline formed around the platter and the power supplies flywheel and a circle spline placed in a loft nurbs object.

This is my own turntable that I used as a reference.

A view of the tonearm.

Another view, are you getting bored yet.

Last one.

I created this text in Photoshop using Optima and Helvetica Neue regular. It is used on the arm pivot.

This was used on the rear of the tonearm base plate.

This was used for the counter weight.

Lastly just to be over fussy, this logo was placed on the front of the stylus.

I used the programs 3 point light preset and added a sky object to light my scene. I placed cameras at different angles. I turned on Global Illumination, Ambient Occlusion and Colour Mapping. I also set Anti-Aliasing to best. My output size was set to 1680 x 1080 pixels @ 72dpi
There are still a few bits missing from the model but I think I will leave that for another day. Cheers.