WIRING THE POWER AND BIAS SUPPLIES
1( ) Strip the insulation from a 3" (7.5 cm) yellow wire.
Connect one end of the bare wire to C2 lug #1. Con-
nect the other end to C4 lug #5. "Tin" the entire
length of this bare wire with solder and a hot iron so
that the wire is solid and shiny.
2( ) Prepare a 1 1/2" (4 cm) yellow wire. Connect one
end to C2 lug #2. Connect the other end to C3 lug
#3.
3( ) Prepare another 1 1/2" (4 cm) yellow wire.
Connect one end to C4 lug #6. Connect the other
end to C5
lug #7.
4( ) Select the 7.8 ohm precision resistor, and cut its leads
to 1" (2.5 cm) each. Connect one lead to V5 pin #8
(S-2). Connect the other lead to C2 lug #1.
5( ) Select one of the 220,000 ohm, 1/2
watt resistors (red-
red-yellow), bend its leads 90° to its body, and cut
its leads to 1/2
"
(1-3 cm) each. Connect one lead to
C2 lug #1 (S-3). Connect the other lead to C2 lug
#2 (S-2).
6( ) Select another of the 220,000 ohm, 1/2
watt resistors
(red-red-yellow), bend its leads 90° to its body, and
cut its leads to 1/2
"
(1.3 cm) each. Connect one lead
to C4 lug #5 (S-2). Connect the other lead to C4 lug
#6 (S-2).
7( ) Select another of the 220,000 ohm, 1/2
watt resistors
(red-red-yellow), bend its leads 90° to its body, and
cut its leads to 1/2
"
(1.3 cm) each. Connect one lead
to C3 lug #3 (S-2). Connect the other lead to C3
lug #4.
8( ) Select the last 220,000 ohm, 1/2
watt resistor (red-
red-yellow), bend its leads 90° to its body, and cut
its leads to 1/2
"
(1.3 cm) each. Connect one lead to
C5 lug #7 (S-2). Connect the other lead to C5 lug
#8.
9( ) Prepare a 4" (10.5 cm) black wire, but remove
3/8" (1 cm) of insulation from one end, and the
conventional 1/4
"
(.6 cm) from the other. Feed the
long-stripped end through TD-1 pin #8, and
connect it to TD-1 pin #7. Solder both pins. Connect
the other end to C3 lug #4.
10( ) Select the
longer
lead of the two black leads from the
choke, and connect it to C3 lug #4 (S-4).
11( ) Select the orange and the orange-white leads from the
power transformer, and feed them under terminal
strip T-3. Twist the leads neatly together, and con-
nect them both to power fuse lug #1 (S-2).
NOTE: If this unit is being wired for 100 volts AC line (Japan),
select instead the brown and the yellow leads, twist them to-
gether, feed them under terminal strip T-3, and connect both
leads to power fuse lug #1 (S-2).
If this unit is being wired for 220 or 240 volts AC line, select
only the orange-white lead, feed it under terminal strip T-3, and
connect it to power fuse lug #1 (S).
12 ( ) Select the red-yellow lead from the power trans-
former, and also feed it under terminal strip T-3.
Bend a hook at the free end, and connect it to the
bare wire between C2 lug #1 and C4 lug #5 (S).
13 ( ) Prepare a 4" (10 cm) yellow wire, but remove 3/8"
(1 cm) of insulation from one end, and the conven-
tional 1/4" (.6 cm) from the other. Bend a hook at
the long-stripped end, and connect it to the bare wire
between C2 lug #1 and C4 lug #5 (S). Connect the
other end to T-3 lug #1 at the base (S).
14 ( ) Select the green-yellow lead from the power trans-
former, and connect it to T-3 lug #2 at the base (S).
15 ( ) Select the two red leads from the power transformer.
Connect one (either) lead to T-3 lug #3 at the base
(S). Connect the other lead to T-3 lug #4 at the
base (S).
16 ( ) Select one of the .02 mfd disc capacitors, and cut its
leads to 1/2
"
(1.3 cm) each. Connect one lead to T-3
lug #1 at the tip. Connect the other lead to T-3 lug
#2 at the tip (S).
17( ) Prepare a 6
1/2
"
(16.5 cm) yellow wire. Connect
one end to T-3 lug #1 at the tip (S-2). Connect the
other end to C1 lug "A". Solder this wire and lug
securely
to the bare chassis.
All diodes supplied either have their cathode end marked
with a stripe, an arrow head, a colored tip, or this end is
cone-shaped. It is this marked or shaped cathode end that
will be referred to in several subsequent steps. The sketch
shows the diodes enlarged for detail.
18 ( ) Select one of the four diodes of the same size, part
#544323, cut the leads to 3/4" (2 cm) each, and bend
the leads almost 90° to its body. Connect the lead on
the marked end to T-3 lug #5 at the tip. Connect the
other lead to T-3 lug #3 at the tip (S).
19 ( ) Select another of the diodes, part #544323, cut the
leads to 3/4" (2 cm) each, and bend the leads almost
90° to its body. Connect the lead on the marked end
to T-3 lug #6 at the tip. Connect the other lead to T-3
lug #4 at the tip (S). Now bend this diode down to-
ward the chassis.
20 ( ) Select another of the diodes, part #544323, and cut
the leads to 1/2
"
(1.3 cm) each. Connect the lead on
the marked end to C5 lug #8. Connect the other lead
to T-3 lug #5 at the tip (S-2).
21 ( ) Select the remaining diode, part #544323, and cut its
leads to 5/8" (1.5 cm) each. Connect the lead on the
marked end to C5 lug #8. Connect the other lead to
T-3 lug #6 (S-2).
22 ( ) Select the last lead from the choke, feed it under ter-
minal strip T-3, and connect it to C5 lug #8 (S-4).
23 ( ) Select the red-black lead from the power transformer,
and connect it to T-5 lug #7 at the
base
(S).
NOW TURN TO PAGE 14
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