Parts Lists
There are two types of Fourmix boards, issue 1 and issue 2, please ensure that you use the
right parts list for the board you have.
For general information regarding where to get parts and suggested part numbers please see
our useful Parts Guide at the project web page or http://www.oakleysound.com/parts.pdf.
The components are grouped into values, the order of the component names is of no particular
consequence.
A quick note on European part descriptions. R is shorthand for ohm. K is shorthand for kilo-
ohm. R is shorthand for ohm. So 22R is 22 ohm, 1K5 is 1,500 ohms or 1.5 kilohms. For
capacitors: 1uF = one microfarad = 1000nF = one thousand nanofarad.
To prevent loss of the small ‘.’ as the decimal point, a convention of inserting the unit in its
place is used. eg. 4R7 is a 4.7 ohm, 4K7 is a 4700 ohm resistor, 6n8 is a 6.8 nF capacitor.
Issue 1 Fourmix Parts List
Resistors
1% 0.25W metal film types are to be recommended simply because they are better quality and
lower noise components. However, 5% ones can be substituted in any of the places if you
wish. R5 will probably have to be a 5% type since getting hold of a 1% metal film resistor in
this value may be difficult.
22R R9
75R R29
120R R7, R18
470R R6
1K R17, R24
2K2 R36, R39, R37
3K R2
3K3 R21, R10
3K9 R3
11K R4, R23, R33
22K R8, R19, R20, R22, R27, R28, R35, R34, R38
33K R25, R32, R31, R30, R26
100K R12, R15, R14, R11, R13
150K R16
1M R1
3M3 R5
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