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| M701 to the junction of voltage divider re-
sistors R704 and R716. When no received
s i g n a l , the voltage across R716 cancels
the effect of the voltage drop across re-
When METER switch S704 is in the S-
s i s t o r R308 and M701 indicates no in-
M E T E R position, meter M701 indicates
put. When a signal is received, avc action
the strength of the received signal. METER
reduces the current through the second if.
switch S704A connects the negative side of
amplifier V302. This reduces the voltage
meter M701 to resistor R308, which is a
drop across resistor R308 and results in
part of the cathode bias circuit for the sec-
a meter reading that is proportional to the
ond if. amplifier V302. METER switch
amplitude of the received signal.
S704B connects the positive side of meter
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