I built a Small Clone chorus using the layout from Tonepad.It is with depth mod. However the chorus effect is not significant even i turn all the pots.
Can anyone help me :icon_rolleyes:
Here are the voltages readings:
input voltage: 8.60v
4047:
7.43v
118.2mv
6.65v
7.63v
7.62v
7.65v
00.2mv
00.2mv
00.2v
3.64v
3.68v
00.2mv
7.45v
7.65v
358:
1.575-1.696v
3.75v
3.74v
0mv
1.996-2.173v
2.077v
O.L.-3.52v
8.28v
3007
7.64v
3.72v
7.62v
00.2v
00.2v
3.74v
5.88v
5.88v
4558
4.12v
4.12v
4.02v
00.2mv
4.10v
4.10v
4.10v
8.26v
Q1
c 0mv
b 8.26v
e 7.42v
Q2
c 8.28v
b -0.525v
e 10.0mv
Q3
c 6.64v
b 8.27v
e 6.30v
1m-c
1,2 0.34ohm
2,3 0ohm
10k-b
1,2 9.2kohm
2,3 6ohm
Here's my readings from a working Small Clone build:
Supply 9.03v
IC1 4558
1. 4.3
2. 4.3
3. 4.2
4. 0
5. 4.3
6. 4.3
7. 4.3
8. 8.7
IC2 MN3007
1. 8.05
2. 4
3. 4.4
4. 0
5. 0
6. 3.98
7. 4.43
8. 4.43
IC3 4047
1. 7.16
2. 0.06
3. 6.93 -7.17
4. 8.06
5. 8.04
6. 8.04
7. 0
8. 0
9. 4
10. 4
11. 4
12. 0
13. 7.92
14. 8.05
IC4 LM358
1. 0.8 to 2.5
2. 3.94
3. 3.91
4. 0
5. 0.89 to 3.4
6. 2.13
7. 0.01 to 7.4
8. 8.71
Q1 (2N5087) E. 3.86 B 3.22 C 0
Q2 (2N5088) E 3.72 B 4.28 C 8.7
Q3 (2N5088) E 8.04 B 8.67 C 8.7
I'm a little busy just now but
Looking at yours quickly all seems well up to the 4558 so it's possibly a duff 2N5087 PNP (Q1) you should be getting around 3v on the base you could try to get it by adjusting the trimmer which should be a code 104 (100K) and make sure Q1 is correctly orientated it being PNP or if you have a spare one try it hopefully you've used sockets for the IC's and transistors.
I'd also post some pics of both sides of the board so we can look and see if there are any incorrect values, diode in the wrong way etc.