Heath Heathkit SB-104A, Manual

Page: 117 / 204

E A S H
Page 1-115
transistor
transistor
transistor
transistor
transistor
0 5 1 7 : 2N3638A transistor
(#417-234).
#
l
4
l
1
i c/ E d FE
NOTE: Identify the leads of the following
transistors from the appropriate detail.
Then insert the leads into the indicated
circuit board holes. Solder the leads to the
foil and cut off the excess lead lengths.
BO1I0M V I E W OF T R A N S I S T O R
s
" ,4. , 0 »
E
e ·e
«€
0501: 40673
transistor
(#417-274).
First, line up the tab with the tab out­
line on the circuit board. Insert the
transistor leads (identified in the de­
tail) into the correct holes on
the cir­
cuit
board. Solder each lead to the
foil and cut
off
the excess lead
lengths. Then rerove the shorting
wire from the transistor leads.
S H O R T I NG
~re.
EN
5y'
PART
NUMBER
l 1
0
■
IDENTIFICATION
DRAWING
CJ-0
&°
• .S
II!'.:+
]' +]]
>+
_r-,_ �
n
c
u ,
l==,j,:,f:=;3=,==2=N=4=1=2=1==,=,.=n=,=,,=,o=,=-
"-----' "-----' l,-t)
T
17-2351.
The steps performed in this Pictorial are in
this area of the circuit board.
•
E
¢
( ) Bend the center (B) lead of seven
MPSA2O transistors (#417-801)
away from the flat as shown.
NOTE: Ta install transistors in the follow
ing steps, match the transistor flat or
tab
to the outline printed on the circuit board
and insert the leads into the holes. Posi­
tion the transistor body 1/4" above the
circuit board. Solder each lead to the foil
and cut off the excess lead lengths.
Install the seven transistors at:
( ) 0512.
0509.
0508.
0507.
0502.
0503.
0504.
PICTORIAL 10-6