What's new

Oliver Acoustic Research AR-94 specifications
Daniel Azziorri RCA new topic
Roy A. Esposito Acoustat topic reply
Joe Kasperowski Acoustat topic reply
Ed Optimus topic reply

Introduction

Bang and Olufsen introduced the world's first tangential-tracking turntable (Zero tracking error) - the BeoGram 4000, in 1972. It has a permanent place in the NY Museum of Modern Art. The updated models (produced from 1974 to 1980) were available as the BG4002 - a stereo version (without a built-in RIAA amplifier), and as the BG6000 quadraphonic version with a built in CD4 demodulator /RIAA amplifier.

They were superseded by a cheaper and much lighter range of models (Type 59xx) produced from 1985 to 1994. They all looked very similar from the outside, and inside had identical circuit boards, and operating mechanisms.

They have proven very reliable over the subsequent 20 or so years, with only a small number of consistent defects, beyond regular wear and tear.

This article describes how to perform a complete restoration of this model, including taking care of all known failures and defects. The Manufacturer's Service Manual, available from BeoWorld, is an integral component of the proper restoration process.

This article covers, by and large, the following BeoGram type numbers:

  • BeoGram 3000*, 5901, 5903, 5905
  • BeoGram 3300 5931, 5933, 5935
  • BeoGram 3500* 5976, 5977, 5978
  • BeoGram 4500* - 5951, 5953, 5954, 5955
  • BeoGram 5005 5921, 5923, 5924, 5925
  • BeoGram 5500 5941, 5943, 5944, 5945
  • BeoGram 6500* 5946, 5948, 5949, 5950
  • BeoGram 7000* 5981, 5983, 5984, 5985
  • BeoGram 8500 - 5971, 5973
  • BeoGram 9000 5961, 5963, 5964
  • BeoGram 9500 5966, 5968, 5969, 5970
  • BeoGram TX2 5911, 5913

Those marked with an asterisk* have the built-in RIAA pre-amplifier, so they do not require an external phono-stage amplifier to play back LP's through a modern AV Receiver.

Advertisement

Download the article

Click here to download the full article in PDF