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MODULATION TRANSFORMER INSTRUCTIONS
Please read these instructions before attempting
to
test
the
modulation transformer in this transmitter.
The modulation transformer employed in this transmitter
may
be of
a
type which will indicate unequal resistance
in the
primary windings.
An ohmmeter check
of
the wind-
ings
may indicate
that the transformer is defective;
whereas in reality, this
is
a
normal reading and the
modulation transformer
is
performing normally.
In order to
properly check this transformer outside
of
the
transmitter circuit, merely apply 117 volts, 60 cycle
a.c. to the
secondary winding.
Check the voltage on each
half
of the
primary winding.
If
the
transformer
is
oper-
ating normally, then these voltages should be asproximately
equal.
Gates Radio Company
Quincy, Illinois
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