Beogram 4002

About the Beogram 4002

The Beogram 4002, designed by Jacob Jensen and produced from 1974 to 1980, succeeded the Beogram 4000. It featured a tangential tonearm that moved the pickup in a straight line towards the center of the record, reducing tracking error to 0.04%. The turntable used a belt drive system and was electronically controlled with advanced logic circuits that automated all functions, including record size detection and speed selection. It was fitted with the MMC 4000 pickup cartridge (later MMC 20EN) with a frequency range of 20-25,000 Hz ±1.5 dB and an elliptical naked diamond stylus with a stylus pressure of 1g. The platter rotation was governed by a synchronous motor powered via a stabilized oscillator, ensuring independence from mains voltage fluctuations. Wow and flutter were less than ±0.05%, and rumble better than 65 dB (DIN B weighted). The Beogram 4002 was awarded the 'Gold Sim 74' and 'Top Form 74' prizes in electro-mechanics. It could be integrated into the Beosystem 4400 or the quadraphonic Beosystem 6000. Later versions used a DC motor with a built-in FG servo system, improving speed stability and allowing a lighter platter. The turntable featured automatic pickup movement, speed selection, and electronic lift system, with dimensions of 49 x 10 x 38 cm and weighing 11 kg.