Band Specific Parts; Figure 63. Orientation Of U9 Labeling As Installed - NORCAL NC2030 Manual

Figure 63. Orientation of U9 labeling as installed.

R56 - 390
R57 - 15K
R60 - 150K – Double check orientation in the above diagram, R60 and C94 can be confusing!
D5 D6 - MMBD4148
Q8 - BS123
C69 C71 C72 C94 - 0.1uF
C70 - 1000 pf

Band Specific Parts

20m only parts:
C78 - 27 pf (just below and to the right of L10)
C79 – not used (shown not mounted between L10 and trim cap C80)
L10 - 4.7 uH
30m only parts:
C78 - 39 pf (just below and to the right of L10)
C79 - 15 pf (shown not mounted above, between L10 and trim cap C80)
L10 - 6.8 uH
C80 - 30 pf trimmer cap- Both bands. This is installed last because of potential clearance issues with
Make sure the trim cap is installed with the proper orientation. This will
C79.
affect tune up (ground end, hot end)!
TP3: This is a test point for tuning up the LO filter. Create a loop out of a spare section of component
lead and solder it into place.
Norcal NC2030 v5 12-18-05
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