Heathkit IT-12, Assembly Manual

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Page 12
( ) Connect one end of a 2" length of bare wire to pin 3 (Sl) of VI tube socket. Feed the other end through the center
ground lug (S2), through pin 9 (S2) and connect to lug 2(NS) of terminal strip X.
( ) Cut two 6" lengths of hookup wire and strip both ends. Twist the wires together and connect one wire to pin 3 (S2) of
tube socket V2. Connect the other wire to pin 4 (S2). Connect the other ends to pin 4 (NS) and 5 (NS) of socket VI.
( ) Connect one end of a 4-1/2" length of hookup wire to pin 1 (Sl) of V2. Connect the other end to lug 3 (NS) of
filter condenser C7.
( ) Connect one lead of a 330 ohm resistor (orange-orange-brown) to lug 3 (S2) of C7. Connect the other lead to
ground lug U (S2).
( ) Connect one lead of a 10 K ohm resistor (brown-black-orange) to lug 1 (NS) of C7. Con-nect the other lead to lug
2 (NS).
( ) Strip both ends of a 5" length of hookup wire, and connect one end to lug 2 (NS) of C7. Dress the wire towards
the front of the chassis.
( ) Connect one lead of a 330 K ohm resistor (orange-orange-yellow) to pin 2 (NS) of socket VI. Connect the other
lead to ground lug W (Sl).
( ) Connect one lead of a 47 K ohm resistor (yellow-violet-orange) to pin 1 (NS) of socket VI. Connect the other
lead to lug 2 (NS) of C7. Use sleeving on both leads.