8-Bitar Bill of Material (BOM)
•
* = Current Limiting resistor for your bypass LED. This needs
to be wired offboard or together with the optional 3PDT board.
Choose the appropriate value for your LED. Usually a 4.7K
resistor is good for a regular coloured diffused LED and a 15K
resistor for a clear superbright LED.
•
Other things not included in the BOM but good to have:
enclosure, input and output jacks, DC jack, LED holder, 3PDT
switch and knobs.
Schematic
Resistors
Capacitors
IC's
R1
1M
C1
100nF
U1
CD4069UBE
R2
1M
C2
100nF
R3
1M
C3
2.2nF
Transistor(s)
R4
47K
C4
4.7nF
Q1
2N3904
R5
1M
C5
100pF
R6
10K
C6
1nF
Potentiometers
R7
10K
C7
4.7uF
LEVEL
A10K
R8
10K
C8
10uF
R9
100K
Diodes
CLR* 4.7K-22K
D1
1N4001
1x LED for bypass
