Heathkit HM-213 Assembly Manual page 5

Rf load wattmeter
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0,000.,
7
6-32 NUTO
I
#6 LOCKVVASHER1
o
TERMINAL
STRIP
#6 LOCKWASHEREL
FOOT
SPACER
FOOT
6-32 x 1-1/2"
SCREW
Detail 3C
PICTORIAL 3
6-32 NUT?
#6 LOCKVVASHER
E
AD
FOOT
'
W-
6-32 x 1/2"
E
l
SCREW
Page 4
START
NOTE:
DIODES
MAY
BE
SUPPLIED
IN ANY OF THE FOLLOWING SHAPES.
ALWAYS POSITION THE BANDED END
AS SHOWN ON THE CIRCUIT BOARD.
1N295
diode (#56-20, red-white-
green) at 02.
(
1
1
1N295
diode (#56-20, red-white-
green) at 03.
SAFETY WARNING: Avoid eye injury
when you clip off excess leads. We suggest
that you wear glasses, or at least clip the
leads so the ends will not fly toward your
eyes.
FOR
GOOD
SOLDERED
CONNECTIONS, YOU MUST
KEEP
THE
SOLDERING
IRON TIP CLEAN...
WIPE
IT
OFTEN WITH
A
DAMP SPONGE OR CLOTH.
1 Solder the leads to the foil and cut
off the excess lead lengths.
1
ED
TOP L EAD—»-
BOTTOM
LEAD
PICTORIAL 1
CONTINUE
V)
90
ks2
precision.
Position
this
resistor over the screened outline.
(V)
22 ks2 (red-red-orange).
(Le ) Solder the leads to the foil and cut
off the excess lead lengths.
Install the toroid coil as follows:
Position the three toroid coil leads
as
shown,
and
push
the
leads
through the circuit board. NOTE:
Be sure the twisted pair of leads goes
into
the
center
hole.
The
lead
coming from the top of the coil
must go to the hole nearest 02, and
the lead from the bottom must go to
the hole nearest 03.
2.
Carefully push an eyelet through the
center of the toroid coil, through
the circuit board, and solder it to
the foil. Do not force the eyelet.
NOTE: If an ohmmeter is available, check
between the eyelet and one of the coil
leads to be sure they are insulated.
3.
Solder the tinned ends of the three
leads to the foil and remove any
excess lead lengths.
TOP
LEAD

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