Section I. CONTROLS AND INDICATORS
one space to the right. When held
down, causes type-bar carnage to
continue moving to the right until
FIGS key. . . . .When pressed,
right margin is reached.
in the circuit are
Turns motor on and off for initial
moved to figures-shift position for
starting and complete shut down of
typing of upper case symbols or
p e r f o r m a n c e of m e c h a n i c a l
W bile pressed (half-duplex operation
B R E A K switch
operations indicated above letters
only (para 2-9) opens signal circuit
on alphabet keys.
to interrupt transmission from
other teletypewriters. Also restarts
When pressed, after use of FIGS key,
platens of all teletypewriters in the
motors when motors were stopped
circuit are moved to letters-shift
by depression of STOP key.
position for typing of letters.
When clamped in rearward position,
paper of all
prevents transmission from
LINE FEED key
teletypewriters in the circuit is
possible when clamped in forward
advanced 1- or 2-line spaces on
platen. Adjustable for single or
double line feed.
When pressed, type-bar carriages
CAR. RET. key
(fig. 1 -9) of all teletypewriters in
the signal circuit are moved to left
margin of paper.
Used to adjust signal line current,
Turn clockwise to increase current.
When pressed while platen is in
Turn counterclockwise to decrease
figures-shift position, signal bell is
r u n g t o s i g n a l teletypewriter
A R M A T U R E dial Used to adjust tension of selector-
magnet armature spring.
STOP key (Not applicable When pressed while Platen is in
figures-shift position, stops motors
ARMATURE dial lock Used to lock ARMATURE dial at
selected dial position. Turn clock-
of all interconnected teletypewriters
wise to unlock dial.
that are equipped with a motor-stop
Used to adjust receiving mechanism
When platen is in letters-shift
for best performance.
position, pressing of each alphabet
RANGE dial lock
Used to lock RANGE dial at selected
key causes printing of letter shown
position. Turn clockwise to lock;
on keytop. When platen is i n
counterclockwise to unlock dial.
figures-shift position, pressing of
Used to switch illuminating lamp on
each alphabet key causes printing
of symbol illustrated on key stop,
ringing of signal bell (S key), or
Used to switch illumination lamp or
s t o p p i n g of motor (H key).
lamp and heaters on and off.
When pressed, causes transmission of
special. purpose blank code group.
On TT-698(*)/TG, used to adjust selector magnet current to
When pressed and instantly released,
causes type-bar carriage to move