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VOX
GAIN CONTROL
(2 on Figure 6)
3.3.
REAR
PANEL
CONTROLS
(See Figure 7)
COOLING
FAN
(1 on Figure 7)
This
four vaned fan cools the RF amplifier section of the
TS-900.
The POWER
switch turns the fan on and off.
BIAS CONTROL
(2 on Figure 7)
RF VOLT
CONTROL
(3 on
Figure 7)
Use the RF VOLT control to adjust the sensitivity of the
RF output function of the meter.
ANTI
VOX
CONTROL
(4 on Figure 7)
This control adjusts the level of the anti VOX
signal fed
into the VOX
circuit.
Adjust the control to prevent feed-
back from the speaker from tripping the VOX circuit.
SG SWITCH (5 on Figure 7)
The SG slide switch controls the screen grid voltage on the
6LO6
tubes.
For tuning or neutralizing the TS-900 you
can set the switch to the OFF position.
When the switch
is off the T. MUTE
light is illuminated.
Turn the switch
back to the ON position for normal operation.
VFO
SWITCH
(6 on Figure 7)
The
VFO
slide switch selects between
the internal
(INT)
VFO of the TS-900 and an external
(RMT) VFO such as
the
VFO-900.
For normal operation, without an external
VFO, set the switch to INT.
If the switch is set to RMT,
12
and no remote VFO is attached, the internal VFO will not
operate.
PHONE
PATCH
IN JACK
(7 on Figure 7)
For operation with a phone patch connect a high impedance
phone patch input to this jack.
PHONE
PATCH
OUT JACK
(8 on Figure 7)
SPEAKER
JACK
(9 on Figure 7)
The receiver audio output must be connected through this
jack to the PS-900
or another
external
8 ohm
speaker.
RL MAKE
JACK
(10 on Figure 7)
This jack is connected to a relay in the TS-900 for control-
ling a linear amplifier
or an external
receiver.
This relay
contact
is normally
open
during
receive
and
shorted
or
closed to ground during transmit.
RL BREAK
JACK
(11 on Figure 7)
This jack is connected to a relay in the TS-900 for control-
ling a linear amplifier or an external
receiver.
This relay
contact
is normally
closed
to ground during receive and
open during transmit.
ALC
INPUT
JACK
(12 on Figure 7)
When
the TS-900
is used with a linear amplifier which has
provisions for ALC output, connect
the output from the
amplifier to this jack.
®
FIGURE
6,
TS-900 Side Panel Controls
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