Vectronics VEC-1002K Owner's Manual - page 14
VEC-1002K Owner's Manual
2 Meter FM Receiver Kit
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! ! 4. Find two (2) 27 pF multilayer capacitors (27 or 270). Install one at C2
and solder.
! ! 5. Install a 27 pF multilayer capacitor at C4 and solder.
! ! 6. Find a 56 pF multilayer capacitor (56 or 560). Install at C20 and
solder.
! ! 7. Find a 100 pF multilayer capacitor (101). Install at C7, spreading the
leads before inserting to accommodate wider pin spacing (this spacing
is due to a PC track running between the pads on the bottom side of
the board). Solder.
! ! 8. Find two (2) 470 pF multilayer capacitors (471). Install one at C15,
spreading the leads for wider spacing (as described above). Solder.
! ! 9. Install a 470 pF multilayer capacitor at C16 and solder.
This completes installation of the 9 multilayer caps. Remember to take frequent
breaks while building your kit to avoid fatigue.
Phase 5: Electrolytic Capacitors
The last six (6) capacitors in the kit are electrolytic capacitors. Electrolytic caps
are polarized and must be installed the correct way in order to work. Each
capacitor's plus (+) mounting holes are noted on both the circuit board and parts
placement diagram. If the markings on the capacitor body are unclear, the plus
(+) lead is always the longer of the two.
! ! 1. Find two (2) 1 uF electrolytic capacitors. Install one at C23, observing
polarity, and solder.
! ! 2. Install a 1 uF electrolytic capacitor at C28 and solder.
! ! 3. Find two (2) 10 uF electrolytic capacitors. Install one at C30 and
solder.
! ! 4. Install a 10 uF electrolytic capacitor at C31 and solder.
! ! 5. Find two (2) 100 uF electrolytic capacitors. Install one at C8 and
solder.
! ! 6. Solder the remaining 100 uF cap at C9.
This completes installation of all capacitors. Before moving on to the next phase
of construction, check the polarity of each electrolytic one more time to confirm
all six are installed correctly.
Phase 6: Semiconductors