Heathkit SB-401 Assembly Manual page 72

Ssb transmitter
Hide thumbs Also See for SB-401:
Table of Contents

Advertisement

( ) Inner wire of the black-green
cable to lug
17. Do not use sleeving.
( ) Inner wire
of
the black- white cable to lug 13
(8-1). Cut off the shield lead. Do not use
sleeving.
Detail4-6A
PUSH SLEEVING
OVER CONNECTION
.' "
". ~
••• ~ ••• ' Z !, • •
',/!
~
.
SOLDER
( .) Shield of the black-green cable to the bare
wire between lugs6andl1
of the relay (8-1).
( ) Inner wire of the black-red
cable to lug 12
(8-1). Cut off the shield lead. Do not use
aleeving,
SLIDE
SLEEVING
OVER WIRE
Connect the black-green
and the black-red coax-
ial cables from B0#3 of the coaxial cable assem-
bly, and the black- white cable from grommet HB,
to relay AA in the following steps.
( ) White from B0#11 to lug 16 (8-1).
( ) Orange from BO#11 to lug 8 (8-1).
( ) White-gray
from
B0#11 to lug 3 (S-I).
( ) Green from BO#11 to lug 14 (S-I).
( ) Connect aI" bare wire between lugs 6
(8-1)
and
11 (S-1).
The bare
wire should be
looped
as
shown.
Do not use sleevmg,
NOTE:
For
the following steps,
place
1/2"
lengths of sleeving on the end of the wires before
attaching them to the relay. The wires should
have only 1/4" of insulation removed from the
ends; if the stripped part of the wire is longer,
cut it
to
1/4". After the connection is soldered
and cooled, push the sleeving over the relay lug
as shown in Detail 4-6A. Use only enough solder
to insure a good connection. Refer to the inset
drawing on Pictorial
4-6 for relay lug numbers
and wire colors.
( ) White-brown from BO#11 to lug 10 (8-1).
( ) Connect a 1-1/2"
red wire from
K
on the
mixer-bandpass
circuit board (8-2) to lug 20
(8-1).
( ) Connect a 3-1/4" green wire from
H
on the
mixer-bandpass
circuit board (8-1) to lug 9
(8-1).
.
( ) Connect the white-orange
wire from B0II10
to lug 19 (8-1).
Make the following connections
to relay AA.
Bend the lugs, if necessary,
so they do not
touch the chassis.
( ) Either
black from
B0#11 to lug 1 (8-1).
( ) other
black from
B0#11 to lug 5 (8-1).
( ) Gray from B0#11 to lug 2 (8-1).
NOTE:
It will be much easier to wire the relay
in the following steps
if
the chassis is set on the
side nearest the carrier generator circuit board.
( ) Cut ten .1/2" lengths of sleeving, They will
be used in the following steps.
Refer to Pictorial 4-6 for the following steps.
Page 60

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents