PARASIT STUDIO 1985, Build Document

Page: 4 / 7

1985 Guitar Synth Bill Of Materials (BOM)
BOM NOTES
•
Use multilayer ceramic capacitors for C9 & C10 (important!)
•
* R11 is a Current Limiting Resistor for the bypass LED. Use
the appropriate value for your LED type. For diffused LED's I
recommend using a 4.7K resistor, and for clear superbright
LED's I recommend a 15K resistor.
•
** The reset switch is optional and not really needed. It will
reset the pedal which will restart the hidden feature
(depending on the other switches). Use a momentary normally
open switch.
Other things not included in the BOM but good to have:
enclosure, input and output jacks, DC jack, led bezels, 3PDT switch
and knobs.
Resistors Capacitors IC's
R1 10K C1 100nF U1 Attiny85 20PU
R2 1M C2 10nF U2 Attiny85 20PU
R3 470K C3 22uF
R4 10K C4 2.2uF Potentiometers
R5 100K C5 1uF OCTAVE DOWN A100K
R6 100K C6 1nF UNISON A100K
R7 100K C7 100nF OCTAVE UP A100K
R8 100K C8 22uF
R9 10K C9 100nF Switches
R10 4.7K C10 100nF DOWN SPDT on/off/on
R11 CLR* UP SPDT on/off/on
Diodes
RESET Momentary SPST **
D1 1N4001
D2 1N4148 Transistor(s)
D3 1N4148 Q1 78L05
1x LED Q2 2N3904