reference
|
value
|
number
|
U1,U2*
|
TL074
|
1 / 2*
|
Q1,Q3*
|
BC547
|
1 / 2*
|
Q2,Q4*
|
BC557
|
1 / 2*
|
D1,D2*
|
1N4148
|
1 / 2*
|
R1,R2
|
10 ohm
|
2
|
R6,R17*
|
470 ohm
|
1 / 2*
|
R7,R12,R13,R18*,R23*,R24*
|
1K
|
3 / 6*
|
R5,R16*
|
10K
|
1 / 2*
|
R3,R4,R14*,R15*
|
22K
|
2 / 4*
|
R8,R9,R19*,R20* |
100K 1%
|
2 / 4*
|
R10,R11,R21*,R22* |
120K***
1%
|
2 / 4*
|
C3,C7*
|
10nF
|
1 / 2*
|
C4,C6,C9*
|
100nF
|
2 / 3*
|
C5,C8*
|
1µF polyester film
or 1µF/35V tantalum polarised**
|
1 / 2*
|
C1,C2
|
22µF/25V electro.
|
2
|
P2,P3,P5*,P6*
|
50K lin potentiometer
|
2 / 4*
|
P1,P4*
|
500K**** log potentiometer
|
1 / 2*
|
SW1,SW2,SW3*,SW4*
|
SPDT switch
|
2 / 4*
|
Jk1,Jk2,Jk3,Jk4*,Jk5*,Jk6*
|
6.5 mm jack socket
|
3 / 6*
|
|