THORENS TD125 - Cartridge Alignment; Vertical Tracking Angle

5.2. Cartridge alignment
The TP 50 plug-in shell allows to adjust first the vertical
tracking angle and then the stylus overhang for opti-
mum tracking.
4 15/16" Fig.3
49mm
5.2.1 Vertical tracking angle
Loosen slightly the two screws A on both sides of the
shell and small screws 8 (see fig. 3)
Insert the shell plug in the arm socket, allowing the
location pin to enter the slot. Press inward and tighten
the locking nut firmly but not more than necessary.
This operation is best performed when the arm is
clamped in the arm rest. Bring the tone arm over a
record (caution: take a worn record) and adjust the
vertical tracking angle according to the instructions
of the cartridge manufacturer, in turning the shell on
tt termined by the two screws A. Do not force
the
shell
into
position,
due
to
the
extra-light
design
this could lead to serious damages.
12
For 15° cartridges, the proper vertical tracking angle
is obtained when the upper surface of the plug-in shell
's horizontal
Make sure that the rear of the shell or of the cartridge
cannot contact a warped record. If necessary, increase
the vertical distance between the stylus tip and the
bottom of the shell with the help of spacers (see fig. 3).
At last tighten smail set screws B.
Due to this special adjustment it is possible to obtain
a
15*
vertical
tracking
angle
also
for
a
number
of
older
cartridges
which
were
not
manufactured
ac-
cording to the present international standards.
5.2.2 Stylus overhang
The optimum distance of 230 mm between stylus tip
and vertical tone arm bearing is obtained when the
stylus tip is at a distence of 49 mm from the rear
vertical surface of the plug-in shell (see fig. 3)
Tighten the two screws A.
5.3. Cartridge connection
Four separate colour coded leads are already soldered
to the terminal pins in the shell: