Heathkit SG-8 Manual page 24

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Shift the output cable of the signal generator to the RF OUT jack and adjust the controls to give
a modulated
RF signal at the IF value for the receiver.
(In most cases this will be 455 KC).
Using a 50 wuf condenser
in series with the "hot" lead inject the signal at the input of the IF
stage (Point J in Figure 18). The use of a small coupling condenser in this case is to minimize
detuning of the IF and RF stages for the signal generator lead.
If a tone is once again heard in
the loudspeaker,
we know that the IF's stage, under test, is in satisfactory operation.
E
Spee eer pee
M SPEAKER
osc. POWER
SUPPLY Figure 18
REPLACEMENTS
A. Thoroughly identify the part in question by using the part number and description found in
the manual parts list.
B. Identify the type and model number of kit in which it is used.
C. Mention the order number and date of purchase.
D. Describe the nature of defect or reason for requesting replacement.
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