Anti-skating test record

29.95  [25.17  excl. VAT]

Delivery time: approx. 2-4 working days within the EU | approx. 12 - 26 worldwide | import restricted areas 8 weeks

SKU: BB#7572 Category:

Description

[Shipping only within Germany*]

Use this test record to check your anti-skating.

Origin of Lateral Force

When playing a vinyl record, the needle is guided through a spiral groove where the audio recording is stored. In addition to the vertical force, there are also friction forces acting tangentially to the groove. One component of this force acts in the direction of the connection between the needle and the pivot point of the tonearm, and is detected in the tonearm bearing. The second component acts perpendicular to it and tries to turn the tonearm towards the center of the record. As a result, the pressure of the needle on the inner wall of the groove, where the left channel is recorded, is greater than on the outer wall of the groove, where the right channel is recorded. These forces are balanced by introducing a compensating force that tries to turn the tonearm toward the edge of the record. This force is generated by the weight or electromagnet of the turntable, most commonly by a spring. Usually, the setting of the lateral force has the same scale as the vertical pressure on the needle, and if the same numerical value is set as the vertical pressure, the lateral force is also close to the optimal setting without further tools. However, this does not mean that the pressure on the needle is the same strength as the set lateral force. This force is much smaller, and just to simplify the operation of the turntable, both scales are often the same.

Setting the Horizontal Position of the Turntable

The device should be placed on a stable surface where no vibrations from the surroundings are transmitted. Suitable options include wall-mounted shelves or solid, non-resonating tables. The horizontal position is adjusted using a standard spirit level placed on the turntable or using a multi-directional spirit level.

Setting the Compensating Force (Anti-Skating)

This test record without grooves – a so-called mirror – allows you to adjust the appropriate size of the compensating force without additional measuring instruments.

  1. Check the horizontal position of the device with the spirit level.
  2. Set the vertical force and the compensating force to zero – the cartridge “floats” in the air and should remain at any position above the record where you place it.
  3. If you gently blow on the side of the tonearm, it should rotate freely.
  4. Set the vertical force at the tip of the needle according to the specifications for the specific type of cartridge and needle to about one-third of the range indicated by the manufacturer.
  5. Turn on the turntable and place the tonearm with the cartridge on the smooth surface near the edge of the record. The cartridge should glide toward the center of the record.
  6. Increase the compensating force until the cartridge no longer moves on the surface of the record. Ideally, the cartridge should remain at any position on the record where you place it. In other cases, it is sufficient if the cartridge stabilizes approximately in the middle of the record surface.

*Due to the new dimensional regulations of DHL, this product can unfortunately only be delivered within Germany with appropriate shipping costs. We are eagerly looking for an alternative shipping service provider.