INTRODUCTION
The
TTPSU
and motor anti-vibration circuit is a combination of the long established P9
power supply along with an improved
RP6
anti-vibration motor drive feeding a 24V AC
synchronous motor. The
TTPSU
uses a remote "wall wart" transformer therefore
keeping the sources of hum & noise well away from sensitive parts such as the cartridge
and phono leads.
The compact
TTPSU
uses exactly the same high stability crystal locked low distortion
sine wave generator as is used in the heart of the P9 power supply. This, along with an
efficient drive amplifier fed from a stabilised DC power supply, generates a 24V AC
balanced signal of less than 0.1% distortion, which is completely un-affected by any
changes in the mains/line voltage and conditions. This then drives the turntables anti-
vibration circuit, which is situated beneath the turntable.
The drive voltage for the motor is run along the power lead to the turntable motor, which
also carries the 33
1/3
/45-RPM DC relay control voltage used to activate the anti-
vibration circuit.
