Dynavector P75 MkIII

I just took this wonderful Dynavector phono stage on trade. It can be set up with a ton of different loads and gain for any cartridge made. Original box and packing of course.
P75 mk3 power supply requirements
AC to DC power adaptor 12VDC +/ 20% 500mA
Two pin adaptor centre positive
Outer Diameter 5.5mm
Inner Diameter 2.1mm

Specifications
The P75 mk3 is a stand alone phono to line level amplifier. It can operate with the
following cartridge types:
Cartridge type Input sensitivity Gain Loading Ω (ohms)
Low output Moving Coil 0.2mV (200μV) 60 & 63dB 30, 60, 100, 220, 470*
Suggested minimum 0.15mV (150μV)
Shunt Capacitance 560pF* (all cartridge types)
Low Output MC Phono Enhancer
specs vary according to cartridge make and model, determined mainly by the
cartridge internal DC coil resistance. Three resistance/gain adjustments
available.
High output Moving Coil 2.0mV 40 & 46dB 47k (47,000) Ω
or Moving Magnet,
or Moving Iron
Medium Output MC/MM 1.0mV 50dB 47k (47,000) Ω
* Some other R and C loading values available including user/custom values.
Always turn off power to the audio system (including power to the P75) when
altering jumpers or settings inside the P75.
NOTE: Under no circumstances should a signal generator be used with the
phono enhancer circuit, as excessive current from the generator may damage the P75.
P75 Design Notes
The P75 has a unique power supply that runs at over 1/4MHz.
It takes the low grade single voltage DC supply from the ac adapter and
converts it to the dual high voltages required for true professional
quality audio reproduction. The operating frequency is over 12 times
higher than the top of the audio band and it incorporates super low
noise wideband regulators in its output stage to give ultra low noise
supply rails.
The internal P75 power supply is totally self contained and stores many
times the maximum possible energy requirements of the phono
amplifiers. This means that the quality or size of the external ac adaptor
is irrelevant. Increasing the capacity of the external supply will make no
difference to the quality of the sound.
The P75 does not have any mains frequency or other low frequency
components in the power supply and so hum problems that plague
conventional phono amplifiers are eliminated.
Note: The P75 supply requires a higher peak current to start up and so
we do not recommend using an adaptor of less than 500mA.
The P75 also has a great advantage over many other designs. It
presents a constant and almost purely resistive load to the cartridge
right across the audio band and beyond. This provides the cartridge
with an ideal load, removing so called "matching" problems.
The P75 also incorporates the unique Phono amplifier invented by Dr
Tominari of Dynavector Systems Ltd, Japan, called a Phono Enhancer.
An earth terminal is provided on the rear panel that will allow the metal
chassis to be connected to earth if required.
While the P75 itself does not generate any hum, the tone arm and
interconnect cables may act as antennae and pick up some hum. This
is normally removed by running an earth wire to the preamplifier ground
directly from the turntable's normal ground.