Heathkit HM-213 Assembly Manual page 10

Rf load wattmeter
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Page 8
CUT THE CABLE ACCORDING TO THE DIMENSIONS BELOW.
PREPARE EACH END AS SHOWN.
21"
CUT OFF
SHIELD
TAKING CARE NOT TO CUT THE OUTER SHIELD OF
VERY.THIN WIRES,
REMOVE THE OUTER INSULATION.
SEE DIMENSIONS
ABOVE
PUSH BACK THE SHIELD. THEN MAKE AN OPENING IN
THE SHIELD AND BEND OVER AS SHOWN.
PICK OUT
THE INNER LEADS.
0
REMOVE THE INNER INSULATION AND STRETCH OUT
THE SHIELD. APPLY A SMALL AMOUNT OF SOLDER TO
THE END OF THE SHIELD AND THE INNER LEADS. USE
ONLY ENOUGH HEAT FOR THE SOLDER TO FLOW.
SOLDER
Detail 4A
NOTE: In the next two steps, leave the lamp leads as long as
possible.
(V)
(14
Connect the lowest lamp lead to lug 2 of terminal strip
E (NS).
Connect the other lamp lead to lug 1 of terminal strip
E (S-2).
(I)
.
Locate the battery connector and connect the black
lead to lug 2 of terminal strip E (S-2).
(V< Turn terminal strip E to press the lamp as far into the
lens as possible. Then tighten the hardware. Be sure
the lamp leads are not touching.
Connect the red battery connector lead to lug 1 of
switch B (S-2).
( ) Prepare both ends of the 21" lengths of cable as
shown in Detail 4A.
Connect the wires from the 2" end of the prepared cable to
switch B in the following steps.
( 't
Red to lug 7 (S-1).
( '.,)• White to lug 5 (S-1).
( Ler
-
Black to lug 3 (S-1).
NOTE: In the next step, do not overtighten the meter nuts
as the meter case can be broken. Also, make sure the meter
top is parallel with the top of the panel.
(14
Remove the meter and
meter hardware from its
carton.
Mount the
meter
at
H with the meter
hardware. See Detail 4B. The shorting wire will be
removed later.
cur
Connect the red wire coming from lug 4 of switch B to
the positive (+) lug of meter H (S-1).
(\„1. Connect the black wire coming from solder lug P to
the negative (unmarked) lug of meter H (NS).
(t)/Connect a 3-1/2" black wire to the negative lug of
meter H (S-2). The other end will be connected later.
NOTE: The 2" white wire will be used later.
INSIDE OF
FRONT PANEL
METER
HARDWARE
Detail 4B
34
1/
V
A
0
'
1"
2"
3"
4"
1,1,E.1
5
,,
6"

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