"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in message
...


It would be most unusual for a turntable unit to incorporate a preamp,
though I couldn't swear it never happened. There were some strange
designs - a section of the audiophile market was then, as now,
prepared to accept almost anything as long as it was sufficiently
esoteric and sufficiently expensive :-)

Back in the day, quite ordinary domestic amplifiers accepted both
moving-coil and moving-magnet pickups. Though there was a thriving
market in boutique alternatives.

Thanks for your comments.

I've now had the unit running with the audio leads feeding a headphone
amplifier. Output was low (too low with my deaf ears to decide whether the
o/p was "level" or whether there was a treble rise (as per uncompensated
RIAA), and I decided to check whether there was any voltage on the 3.5mm
plug. There was - it varied from around 1V to ~ -0.5V on the centre pin of
the plug. The variations seemed to depend on the position of the PU arm,
and what state the deck was in. Perhaps a control/info signal to some
Pioneer Amp.?

--
M Stewart
Milton Keynes, UK



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