Befaco BF-22 SALLEN KEY FILTER V3.3 Assembly Manual

BF-22 SALLEN KEY FILTER V3.3 - ASSEMBLY GUIDE – REV. NOV 17
THANKS FOR CHOOSING ONE OF OUR KITS!
This manual has been written taking into account the common issues that we often find people
experience in our workshops. The order in which the components are placed on the board is
meant to make assembly as easy as possible.
Some steps are not obvious, so even if you're an experienced DIYer please read the steps
thoroughly before starting.
If this is your first project, please read this article before you start assembling the kit:
www.befaco.org/howto/
GOOD LUCK!
MAIN PCB (The small one)
OPEN MAIN BOARD BAG A
RESISTORS
Qty Value Code
10 10k Brown, black, black, red, brown
4 47 OHM Yellow, purple, black, gold, brown
4 220 OHM Red, red, black, black, brown
4 3k Orange, black, black, brown, brown
4 4.7k Yellow, purple, black, brown, brown
2 470 OHM Yellow, purple, black, black, brown
2 680 OHM Blue, gray, black, black, brown
2 820 OHM Gray, red, black, black, brown
2 5.6k Green, blue, black, brown, brown
2 7.5k Purple, green, black, brown, brown
2 15k Brown, green, black, red, brown
2 27k Red, purple, black, red, brown
2 33k Orange, orange, black, red, brown
2 47k Yellow, purple, black, red, brown
2 82k Gray, red, black, red, brown
2 270k Red, purple, black, orange, brown
2 470k Yellow, purple, black, orange, brown R5, R6
2 910k White, brown, black, orange, brown
Name on PCB
R8, R9, R13, R14, R17, R18, R21, R22,
R23, R24
R1, R2, R25, R26
R3, R4, R39, R40
R36, R37, R51, R52
R11, R12, R43, R44
R41, R42
R31, R32
R27, R28
R47, R49
R35, R38
R33, R34
R48, R50
R29, R30
R7, R10
R45, R46
R19, R20
R15, R16
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