aion PROCYON Handmatig - Pagina 6

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aion PROCYON Handmatig

SCHEMATIC

+9V
VA
D1
R17
51R
1N5817
C19
R17 47R in BJFe kit version
100n
GND
GND
VB
R2
IN
15k
R2 sometimes 14.7k
GND
R4
1k
C6
C5
C3
22uF
220n
220n
C4
220n
C6 sometimes 2.2uF
GND
GND
LOW switch:
220n bottom (stock)
110n middle (less bass)
330n top (more bass)
PROCYON NATURAL OVERDRIVE
VB
R15
31k6
C17
C16
R15, R16:
C18
100uF
22uF
470n
GND
GND GND
VA
C2
100pF
3
5
R5
6
2
1k
IC1
CA3130EZ
GND
D2
3mm green
D3
3mm green
R3:
3k in FSB trace and Bearfoot
2
R3
3.6k in BJF kit and One Control version
1
3
(3k gives slightly more clean at the
very bottom of the range)
3k
DRIVE
500kA
31.6k in original HBOD
47k in BJF kit version, One Control,
and Blueberry
C11:
22n in Bearfoot version
47n in One Control version
and Blueberry
R8 sometimes 150k
C8
C9
22n
4n7
R7
10k
C10
22n
GND
GND
GND
NATURE
50kA
1
3
2
Nature 500kA in some units
(likely a mistake in production)
GND
VA
C14
4n7
R14
47k
Q1
2N5457
GND
C12
C15
GND
220n
4n7
I
1
2
3
MODE
II
MODE switch:
I is a variable bass boost (Q1 source bypass)
II is variable hi-cut at the end of the circuit
Blueberry:
R12 2k
R14 27k
R15 47k
R16 47k
C1 22n
C11 47n
C12 22n
C14 omit
C15 2n2
D2-3 3mm red
OUT
R11:
2.2k in original BJFe
2.7k in BJFe kit version
2.6k in One Control version
2.61k in Bearfoot version
2.2k recommended for more output volume
(may need to be adjusted based on JFET used)
C12:
Unknown in original BJFe version (the main
unit traced did not have this capacitor, using
the other mode instead)
22n in BJF kit version
220n in Bearfoot and One Control
R12:
Unknown in original BJFe version (the main
unit traced did not have this resistor, using
the other mode instead)
5k1 in BJF kit version
4k7 in Bearfoot and One Control
6