DR. Q ENVELOPE FILTER
Bill Of Materials
Resistors (14)
5
R1, R2, R11, R12, R15
47k
1
R3
3.3M
1
R4
51
1
R5
22k
1
R6
220
1
R7
10k
3
R8, R9, R10
470k
1
R13
100
Capacitors (9)
2
C1, C3
10n
1
C2
22u
(electrolytic)
1
C4
100n
2
C5, C6
4.7n
1
C7
1n
2
C8, C9
47u
(electrolytic)
Transistors (1)
1
Q1
2N3904
ICs (1)
1
U1
TL072
Potentiometers
1
ATTACK
1kB (lin.)
1
RANGE
20kB (lin.)
1
SENS
100kB (lin.)
Other (2)
2
L1, L2
LED 5mm (red)
1
DP
1N4007
1
RON
1k
