Heathkit SB-1000 - Page 50

Page 52
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Ҥ) Hold the two meters in place while you raise the
frontpanel up toward the frontsubpanelasshown
in Detail 6-20B. Then use two long rails, two short
tails, and eight 6-32 x 3/8” screws to mount the
front panel to the front subpanel. NOTE: The rails
may be mounted either way.
M1: Similarly, position the face of the grid current
meter in its corresponding cutout in the front
panel.
Refer to Pictorial 6-21 while you perform the following
steps.
Inspect each meter for a shorting wire that may be
connected between the two terminals. Remove
any shorting wire that you may find.
Locate the free end of the orange and yellow twisted pair
coming from the meter circuit board. Then refer to
Detail 6-21A and connect the wires at the free end of this
pair to grid current meter M1 as follows:
() Orange wire to the positive (+) marked terminal
(S-1).
(/ Yellow wire to the negative (-) marked terminal (S-
“DD.
Similarly refer to Detail 6-21A and connect the free end
of the red and brown twisted pair coming from the
meter circuit board to multimeter M2 as follows:
\£) Red wire to the positive (+) marked terminal (S-1).
Y Brown wire to the negative (-) marked terminal (S-
1).
Oe Date and sign the FCC label. Then remove the
backing paper and press the label onto the outside
of the rear panel in the area shown.
Carefully peel the backing paper from the Danger
label. Then press the label onto the top of power
transformer T] as shown.
Heathkit
Refer to Pictorial 6-22 while you perform the following
steps.
t
e » Refer to Detail 6-22A and start a 6-32 x 1/8"
setscrew into the small knob and two 6-32 x 3/16”
setscrews into each of the large knobs. Be sure to
start the setscrews into the indicated holes of the
large knobs.
() Turn the shaft of the Multimeter switch fully
counterclockwise. Then install the small knob on
the shaft of the switch and tighten the setscrew. Be
sure to line up the knob pointer with the line at
“High Voltage” before you tighten the setscrew.
NOTE: The setscrew in the knob does not line up
with the flat on the shaft.
Remove both screws from the flange of the top
vernier drive. Discard one of the screws. Make
sure variable capacitor C27 is fully meshed
(closed). Then refer to Detail 6-22B and use one of
the screws that you removed from the vernier
drive and a #4 fiber flat washer to mount the dial
pointer onto the drive as shown. Make sure the
pointer is toward the left end of the scale on the
front panel. Also make sure the pointer does not
rub against the panel.
Jb Similarly mount a dial pointer onto the bottom
vernier drive. Make sure variable capacitor C31 is
fully meshed and the pointer is toward the "0" on
the front panel. Also make sure the pointer does
not rub against the panel.
Install a large knob onto the shaft of each vernier
drive and tighten the setscrews. Make sure the
knob does not rub against the dial pointer.
Turn the shaft of the Band switch fully counter-
clockwise. Then install a large knob on the shaft of
the switch. Make sure the knob pointer lines up
with the line at "160" on the front panel before you
tighten the setscrews.