Thorens TP 21

 THORENS TP 21 Tone arm

For optimum in tracking ability it is not sufficient that a tone arm has a low bearing friction. It is much more important that it has a low effective mass, because high mass prevents the stylus from following the imperfections (warp or ripple) of the record as it should do.

To overcome hgh effective mass one can increase the stylus force, but this results in excessive record wear. 

  

In addition, the TP 21 is a straight arm and not S-shaped. The necessary offset angle is independent of the arm shape. A special surface treatment of the tone arm tube absorbs all undesirable resonances of the tone arm.

It will optimise ideally with almost every cartridge.

Specifications TP 21 tone arm

Effective Length:  232 mm

Effective Mass:  12,5 g

Stylus Overhang:  16,4 mm adjustable

Offset single:  23°

Lateral Tracking Error:  ≤ 0,18°/cm of radius

Skating-compensation:  1 or 2 weights on nylon thread

Tracking Force:  Graduation scale on counterweight

Bearing Friction:  ≤ 0,20 mN  (20mp) in both planes

Cartridge Mounting:  Standard ½"

Capacitance of cable:  150 pF