Inkcap II Build Guide
BoM
R1 = 1k
R2 = 2.2m
R3 = 2.2m
R4 = 10k
R5 = 10k
R6 = 10k
R7 = 10k
R8 = 10k R9 = 2.2k
R10 = 100k
R11 = 47k
R12 = 100k
R13 = 100k
R14 = 470r (470 ohms)
R15 = 100r (100 ohms)
R16 = 47k
R17 = 47k
R18 = 22k
R19 = 10k
R20 = 10k
R21 = 4.7k R22 = none! R23 = none!
R24 = 100k
CLR = current limiting resistor, 4.7k is common for 3mm leds
C1 = 100n C2 = 100n
C3 = 1n
C4 = 10n
C5 = 1n
C6 = 47n
C7 = 47n
C8 = 100n
C9 = 100n
C10 = 100n
C11 = 100n
C12 = 100n
C13 = 10u
C14 = 2.2u
C15 = 100n
C16 = none!
C17 = 100u
C18 = 47u
C19 = 100u
C20 = 47u
C21 = 47u
C22 = nothing / unused
D1 = 1n4148
D2 = 1n4001
TL072 = TL072 or op amp with same pinout
PT2399 = PT2399!
LFO = chip included with kit
VACTROL = vactrol included with kit, match plus sign with PCB (compare with pics below)
Q1 = BC337
Q2 = 2n3904
5v = 78L05 regluiator (2 of these)
LED & BYP = LEDs (plus sign on positive leg)
VOL = B100k - volume of wet signal
TONE = B100k DUAL - LPF on wet signal
DEPTH = B25k - LFO depth
WAVE = B10k - introduces random LFO fluctuations (could just label it "random")
RATE = B10k - LFO rate
CHORUS = SPDT ON-ON toggle - adds unity gain dry signal
Schematic
Drilling
Notice I use those thinner audio jacks. Please double check spacing if you use different jacks! (I reworked the template slightly after making the one in the pic above)
Wiring
IN = board input
OUT = board output
G = ground from DC jack
+9v = +9v from DC jack
Example wiring for 3PDT footswitch. Also notice two ground connections ("G") for jacks in top left
email: wraa (dot) labs (at) gmail (dot) com if you have any questions!
