Heathkit HP-23A - Transformer Wiring; Chassis Wiring

Page 6 eas
MEASURE ALL LEADS FROM WHERE
THEY LEAVE THE TRANSFORMER.
BLK 3-1/2"
BUK-GRN 3-112
BLK-RED 3-1/2"
BLC-YEL 3-1/2"
REDS
RED-YEL 6°
vets
GRN-YEL 5
RN 5
BLU a
BRN (00 NOT Cul)
Detail 1F
NOTE: Use the scale on the fold-out from Page 9
for measuring wires in the following step.
() Refer to Detail 1F and cut the Power
Transformer leads to the following lengths
(measured
from
where
they
leave
the
trans-
former):
WIRE COLOR — LENGTH
Black 3-1/2"
Black-green 3-1/2"
Black-red 3-1/2"
Black-yellow 3-1/2"
Red sr”
Red-yellow 6"
Yellow sr"
Yellow-brown —_—_ do not cut
Green-yellow 5"
Green st
Blue 4a"
Brown do not cut
(_) Remove 1/4" of insulation from the end of
each cut transformer lead, and melt asmall
amount of solder on the bared end to hold
the wire strands together,
(_)
Mount
the
power
transformer
in
the
large
cutout
on
the
chassis
as
shown
in
Detail
1G,
Use
#8
lockwashers
and
8-32
nuts,
(_) Refer to Detail 1# and install 125 uF tab-
mount electrolytic capacitors in the mount-
ing wafers at F, G, H, and K, Insert the
capacitor lugs into the wafers, making sure
that the connecting lug of each capacitor is
oriented as shown on the Pictorial, Then
twist
each
mounting
lug
1/8
turn,
B32 nur
$ #8 LocKwasHir
Detail 1G
VENT THE CAPACITOR AS SHOWN IN THE
CFORIAL,THEN PUSH THE LUGS. OF THE
CAPACITOR INTO THE SLOTS OF THE WAFER.
WHILE HOLDING THE CAPACITOR
IW PLACE, TWIST TACH OF THE
MOUNTING LUGS APPROXIMATELY
Wa TURN
Detail 1H