Epic Polar Boost v1.0
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4
Components
Original configuration
ID
Value
Comment
ID
Value Comment
C1
47n
SMF/MKT/Wima
R1
1M
1% metalfilm
C2
10u
Electrolytic 25V+
R2
33k
1% metalfilm
C3
10u
Electrolytic 25V+
R3
1M
1% metalfilm
C4
100u
Electrolytic 25V+
R4
4k7
1% metalfilm
C5
3n3
SMF/MKT/Wima
R5
1k
1% metalfilm
C6
10u
Electrolytic 25V+
R6
15k
1% metalfilm
C7
4u7
Electrolytic 25V+
R7
1M
1% metalfilm
C8
100u
Electrolytic 25V+
R8
10k
1% metalfilm
C9
100n
SMF/MKT/Wima
R9
47k
1% metalfilm
C10
10u
Electrolytic 25V+
R10
100R 1% metalfilm
C11
47u
Electrolytic 25V+
R11
33k
1% metalfilm
C12
47u
Electrolytic 25V+
R12
Jump
D1
1N5817
R13
10k
1% metalfilm
D2
1N5817
R14
10k
1% metalfilm
D3
1N5817
R15
Jump
IC1
ICL7660S
SW1
DIP2 Gain/Bright
P1
C10k
Boost
SW2
SPDT Voltage
P2
NC
VR1
8k2
1% metalfilm
P3
NC
J1
Jump
Q1
2N5457
J2
Jump
Q2
2SC1815
* Optional parts (see modifications section)
All parts need to be 25V+ rated
Jump
means place a jumper in this spot instead of a component
NC
means Not Connected, so leave it empty
The main effect is configured as the original. The only deviation is the added switchable 18V
charge pump. If you do not want that then read the modifications section on how to leave it
out.
A=Log, B=Lin, C=Rev. Log