The Philips AF 684 is a record player manufactured by Philips between 1978 and 1981, known for its solid construction and reliable performance. This model features an electronically controlled DC motor, allowing for precise speed control at 33.3 and 45 rpm. Adjustments can be made with a fine control allowing for a speed variance of ± 3%. The device has low synchronization fluctuations, with DIN rating less than 0.15% WRMS less than 0.009%, which ensures stable playback. Rumble specifications show a DIN A rating better than -40dB and DIN B better than -60dB, contributing to its quiet operation. The needle contact force is adjustable between 1 and 4 grams using a sliding weight. The tonearm exhibits very low bearing friction, measured at less than 0.5 mN. A key feature is the GP 814 pick-up system, which is paired with the Philips GP 400 II cartridge for enhanced sound quality. Anti-skating features and a viscosity damped tonearm lift provide additional finesse in operation. The magnetic cut-off at the end of the record prevents damage to the needle by allowing it to stay on the record. The design includes adjustable rubber feet and a lid that remains stable in almost any position. This product is part of a broader series which includes the AF 685 and various other models, underscoring Philips' commitment to quality audio equipment during this era.
