Heathkit SG-8 Manual page 13

( ) Referring to Pictorial 3, place a solder lug on the right hand spade bolt as viewed from the
bottom, adda 6-32 nut and tighten.
—_ —
On the left hand spade bolt, place a 2-lug terminal strip TD, a lockwasher and nut. Posi-
tion as shown in Pictorial 3.
~_ —
Solder a 1 3/4" length of shield braid directly on the chassis and sub-chassis as shown in
Pictorial 3.
{ ) Mount the pilot light in the upper right panel hole, as viewed from the front. See Figure 7
for method of mounting
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( ) Mount the three shielded onnectors in the holes marked AF IN, AF OUT, and RF OUT.
8
NOTE: The controls are mounted through both the chassis and panel and hold the panel to the
chassis. Refer to Figure 5 for method of mounting controls. The controls are lettered the
Same as the hole markings on Figure 6.
( ) Mount the two position EXT-INT modulation switch in hole K. Position terminals as shown
in Pictorial 3.
( ) Mount the 1 megohm potentiometer L in hole L, and position terminals as shown in Picto-
rial 3.
( ) Mount the 1 K® control M in hole M, and position terminals as shown in Pictorial 3.
~_
_—
Mount the three position attenuator switch N in hole N, and position terminals as shown in
Pictorial 3.
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PILOT LIGHT ASSEMBLY
Figure 7 Figure 8
ee WIRING OF CHASSIS eu
NOTE: Exercise care when wiring chassis to avoid damage to E band coils.
) \
( ) Twist the two black wires from the power transformer together and connect either wire to
TB3 (NS).
( } Connect the other black wire to TB1 (NS).
( ) Connect a .01 pfd (10,000 wyf) ceramic condenser from TB3 (NS) to the solder lug on the
opposite side of hole F (NS).
( ) Connect a .01 ufd ceramic condenser from TB2 (NS) to the same solder lug (S).
( ) Connect either red wire from the transformer to the negative selenium rectifier terminal.
(The terminal nearest the chassis. ) (S).