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4-5.
BAND SWITCH ~— MEGACYCLES.
The
BAND
SWITCH, a five-position rotary
switch,
selects
the desired
amateur
band, indi-
cated in megacycles.
This switch selects the pro-
per
taps on the coil and additional tuning capaci-
tance for band changes. The 3.5-4.0 MC ON-OFF
switch,
located
under
the TUNING
contr.
'. must
be in the ON
position
for 3.5-4.0 MC
(80meter
band)
operation
only. This
switch places addi-
tional
padder
capacitance
in
the
plate
tuning
circuit.
The 3.5-4.0 MC ON-OFF switch must be
in the OFF
position
for all other operating fre-
quencies.
4-6.
PLATE TUNING.
The plate TUNING
control, a variable capa-
citor,
».sonates
the plate circuit at the desired
frequency.
4-7.
PLATE
LOADING.
The
plate
LOADING
control,
a
variable
capacitor,
adjusts
the transformer
ratio of the
Pi-network
to reflect the desired load to the tube.
4-8.
METER.
The
meter provides an indicator for tuning
the amplifier.
The
meter
indicates grid current
(0 to 500 MA),
plate
current (0 to 500
MA), RF
output voltage (arbitrary scale), and plate voltage
(0 to 500 volts x 10).
Figure 4. Bottom View of Linear Amplifier, Showing Component Locations.
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