Akai AP-A301

The Akai AP-A301 is a fully automatic linear tracking turntable produced in the 1980s, notable for its linear tracking tonearm mechanism rather than a traditional pivoted arm.

Technical Overview

Tonearm and Tracking:

• Features a linear tracking tonearm that moves horizontally across the record, aiming to maintain the stylus at a constant tangent to the groove.

• The tonearm is motor-driven and controlled by a photoelectric sensor system that adjusts the arm’s position based on the record groove.

• Includes an adjustable resistor on the main board to fine-tune the sensitivity of the arm position sensor, allowing correction of tracking speed and preventing skipping or dragging.

Platter and Drive:

• Belt-driven system with a die-cast aluminum alloy platter.

• Typical platter diameter around 300–314 mm (approximate based on similar Akai models).

• Motor and belt drive designed for smooth, low-resonance rotation.

Operation:

• Fully automatic start, stop, and return functions.

• The tonearm automatically advances at the start of the record and returns at the end.

• Includes oil-damped arm lifter for smooth stylus placement.

Dimensions and Build:

• Dimensions: approximately 440 mm (W) x 106 mm (H) x 365 mm (D).

• Weight: around 4–5 kg (typical for similar models).

• Solid construction with a dust cover.

• The unit is designed for ease of maintenance, with accessible parts for cleaning and lubrication.

Known Issues and Maintenance:

• The linear tracking mechanism can sometimes cause the tonearm to advance too quickly, leading to skipping or dragging of the stylus.

• This issue can often be corrected by adjusting the sensitivity of the photoelectric sensor via the adjustable resistor inside the unit.

• Regular maintenance includes cleaning and lubricating the tonearm mechanism and checking the belt condition.