Heath Heathkit SB-104A, Manual

Page: 168 / 204

Page 1-166
C E
LEESE
PA S AND CABLES
P R P A R T I A N H E N D A S H 0
r
iw-,
-"] J / 7
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3-1/2° 3-3/4" 41/2"
5-1/4" 3-1/2"
2"
5-1/2 2-1/4°
7-3/4" 8-1/4"
nu+H
· 3 I 8 " p
t
H I L D
L E A D
C19: Connect a .1
µF
Mylar capacitor from terminal
D 1 5 (S-1/3) to the upper hole of solder lug AN
(S-1/2).
T A K I N G C A R E NOT I C U I ' I } S H I E L D L A D ,
R E M O V E IH ( HI E R I N S I A 1 I O N
&
P F { I O I E
O U
� ,..--::;..-,:i�-SHlfLD l � A D
R E M O V E T H E I N N E R I N S U L A T I O N A N D T W I S T
THE S M A L L W ' R E S OF T H ! I N N E R L E A D
A P P L Y S M A L L A M O U N T
O
S O L D E R I O ' H E E N D
OF THE I N N E R L A D ,
SOLDER-(
C 1 8 : Connect a .01
F
disc capacitor from terminal
F8 (S-1/2) to the upper hole of solder lug AP (S-1/2).
RR21: Connect a 47 9, 1/2-watt (yellow-violet-black) re­
sistor from terminal G4 (S-1/2) to the
9Per
hole of
solder lug AT (NS)
( ) C21: Connect a .1
F
Mylar capacitor between
terminals G 1 9 (S-1/2) and G21 (S-1/2).
R fer to Detail 12-19A for the preparation of the shielded
les in the following steps. Cut each cable to length and
th n prepare each end as shown. Be very careful when you
re ove the outer insulation so you do not cut the inner
insulation or shield wires.
Prepare shielded cables as follows. DO NOT use cable
RG-58A/U. Cables are listed in the sequence in which
they will be connected.
lhlLetail[a19Ae
D4: Connect the banded end of a 1N4149 diode (# 56­
56) to terminal strip AE lug 3 (S-2). Connect the other
diode lead to terminal strip AE lug 2 (S-2).
Place a 3/4" length of small black sleeving on one lead,
and a 1 length of small black sleeving on the other
lead of a .15 2, 2-watt (brown-green-silver-gold)
resistor and a 33
Q2,
2-watt (orange-orange-silver -gold)
resistor.
RR12: Place a 1/2" length of small black sleeving on
one lead, and a 1-3/4" length of sleeving on the
other lead of the prepared 16 kQ resistor. Then
connect the resistor from the collector (C) of 01
(S-2) to switch S2, section A, lug 5 (S-1).
C4: Connect a .1
F
Mylar capacitor from terminal C6
(S-1/2) to the upper hole of solder lug AH (S-3/5).
RR18: Connect a 22 9, 1/2-watt (red-red-black) resistor
from terminal D4 (S-1/2) to the upper hole of solder
lug AL (S-1/3).
C 1 7 : Connect a .01
F
disc capacitor from terminal
C5 (S-1/2) to the upper hole at solder lug AH (NS).
C15: Connect a .001
F
disc capacitor between relay
RY terminals 10 (S-2) and 13 (S-3).
C16: Connect a . 1
F
Mylar capacitor from terminal C2
(S-1/2) to terminal C4 (S-1/2).
R6: Connect the prepared .33
n
resistor from lug E of
transistor 02 (S-1) to terminal B1 (S-1/3). Connect
the lead with the 1" sleeving to B
1.
RR5: Connect the prepared .15 2 resistor from lug E of
transistor 01 (S-1) to terminal B4 (S-1/3). Connect
the lead with the 1" sleeving to B4.
C14: Connect the positive
(+)
lead of a 5
F
vertical
electrolytic to terminal strip BE lug 3(S4). Connect
the other lead to lug 4 (S-1).
Reier to the inset drawing on the Pictorial and form a
small hook in one end of a 16 k!l, 1 /2-watt resistor
(brown-blue-orange). Then connect the hook on the
resistor lead to the hook on the 1-1/2" bare wire and
solder the connection.
NOTE: In each of the following two steps, do not use so
much solder that it runs down the transistor lug.
(
( )
Re r to Pictorial 12-19 (Illustration Booklet, Page 10) for
th lo owing steps.
( ) Cut a 1-1/2" small bare wire. Then form a small hook
in one end of the wire.