On 03/07/14 14:58, Per Jessen wrote:
Anton Aylward wrote:
On 07/03/2014 09:02 AM, michael norman wrote:
Laser pickups were available in the 70's they didn't work.
Sort of, depending on your definitions of those various terms.
IIR B+O had a series of players that had a true parallel tracking arm, that unlike the radial arms did not need the _varying_ angular pressure to move the arm inwards as it followed the spiral of the groove.
The Beogram 4000 (for instance, there may have been others).
I know, I saw reviews of it at the time, others tried to do the same thing. AFAIK none of those products is in existence now, nor does anybody serious in audio engineering use one. The concept didn't work. Neither did the concept of true parallel tracking arms work either. Mike -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org