Ortofon t 20 owners manual

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OFTOIEOR

accuracy in sound

MOVING COIL
TRANSFORMER
T 20

a

Moving Coil Transformer T 20

The T 20 has been designed specifically
for use with Ortofon moving coil car-
tridges.

Throughout the development and pro-
duction of T 20, the best electronic com-
ponents and the most meticulous quality
control techniques have been employed,
in order to ensure high quality sound
reproduction and long life from this
moving coil transformer.

Please read this Owner's Manual care-
fully before you start using your T 20.

In case of difficulties, please contact your
Ortofon dealer, who will always be happy
to give you any assistance necessary.

Why is a step-up device necessary?

The output voltage of most moving coil
pick-up cartridges is very low in compari-
son with the majority of magnetic car-
tridges. Therefore, if atypical moving
coil cartridge is connected to the stan-
dard phono inputs of a High Fidelity
amplifier, it will be impossibleto utilize
the full output power capabilities of the
amplifier, and its signal-to-noise ratio will
be seriously reduced.

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Consequently, it is necessary to in-
crease the output signals from a moving
coil cartridge to a suitable level before
they are led to the phono inputs of most
amplifiers.

The T 20 represents the latest and most
advanced development in moving coil
transformers, which will increase the
output voltage of moving coil cartridges
without adding hiss, hum or distortion.

T 20 Features
Toroidal transformers

The T 20 contains two toroidal trans-
formers. This advanced type of transfor-
mer exhibits a very wide frequency range,
low phase distortion and a remarkable
insensitivity to hum and other external
fields.

Impedance switch

The T 20 can be used in connection
with moving coil cartridges in the impe-
dance range from 2 ohms to 4 ohms. The
by-pass position of the switch means
that magnetic cartridges can be used as
well as moving coil types, without the
need for changing of cables or plugs.

Efficient shielding

The toroidal transformer design and
the housing of the T 20 have been devel-
oped to reduce the induction of hum
from other Hi-Fi components.

Connecting the T 20

The T 20 is easily connected to your
High Fidelity system. Connect the output
leads from your turntable to the two input
sockets on the rear of the T 20. Connect
the supplied cable between the T 20 out-
put sockets and the phone input sockets
of your Hi-Fi amplifier. This cable is of
low capacitance and will ensure opti-
mum performance.