"Geoff Mackenzie" wrote in message
...
Wasn't there a turntable in the seventies which dispensed with the stylus
altogether, using instead some sort of optical pickup? Called the Finial,
or something like that.
You're off by about a decade.
http://en.wikipedia.org/wiki/Laser_turntable
"In 1983 Reis and fellow Stanford engineer Robert E. Stoddard founded Finial
Technology with $7 million in venture capital. A year later servo-control
expert Robert N. Stark joined the effort. A non-functioning mock-up of the
optical turntable was shown at the 1984 Consumer Electronics Show (CES),
generating much interest and a fair amount of mystery, since the patents had
not yet been granted and the details had to be kept secret. The first
working model, the Finial LT-1, was completed two years later and presented
at the 1986 CES."
Got reinvented and asked for more funding every six months or so.
"With over US$20 million in venture capital invested, Finial was faced with
a Hobson's choice: a selling price that was out-of-range for most consumers;
or gamble on going into mass production (thus lowering the selling price) at
the very moment the bottom was dropping out of the market (not to mention a
simultaneous recession). In late 1989, Finial's investors finally succumbed
to their bad timing and liquidated the firm, selling the patents to Japanese
turntable maker BSR, which became CTI Japan which in turn created ELP Japan
for continued development of the "super-audiophile" turntable. It finally
reached the market in 1997 as the ELP LT-1XA Laser Turntable with a list
price of US$20,500 (since reduced for subsequent models)."
IIRC only one escaped and was reviewed in HFN - worked reasonably well,
but was completely defeated by surface pops which came out at
ear-shattering levels.
"The prototype had an interesting flaw: it was so accurate that it played
every particle of dirt and dust on the record, rather than pushing them
aside as a conventional stylus would. "
I've seen one at CES and heard several transcriptions of LPs played with it,
and processed with computer software which can be pretty effective.