Heath Heathkit SB-104A, Manual

Page: 27 / 204

GEIEEE
Page 1-25
•
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7/16"
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#6
FLAT W A S H ER � �
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6-32 X 7/8" THREADED� � � ,.,
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S P A C ER � • �)
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6 L O C K W A S H E R. 5 o p , 2?"
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LONG
s»"
9
Refer to Detail 1-9A and remove and discard the
two
brass screws in the collar of each of the two vernier
PICTORIAL 1-9
( ✓
- E e l
to Detail 1-9A and use a pair of long-nosed pliers to
s the mounting tabs on each vernier
out slightly.
( Loosen the o setscrews in the bushing of each
ve just enough to allow a 1/4" shaft to
be
into the bushing.
efer to Pictorial 1-9 and mount the short shaft
vernier drive on the front of the VFO chassis at FR
and FU.
Jse two 6-32x1" screws, two 7/16" spacers,
four flat washers, and two 6-32 x 7/8" tapped
rs as shown. Securely tighten the hardware.
Mount the long shaft vernier drive on the 6-32 x 7 /8"
threaded spacers with two 6-32 x 1 /4"
screws
and two
#6
lockwashers. Then tighten the setscrews in the
bushing of the long
shaft
vernier drive onto the shaft
of the other vernier drive.
drives.
p48
-LOOSEN
S E T S C R E W S
"
REMOVE
A N D
D I S C ~ R D S P R E A D OPEN
S L I G H T L Y
Refer to ctorial 1-9 for the following steps.
VFO ENCLOSURE
Detail
1-9A