Messages

Should I buy some new v3205s or might something else be the problem?

Yes, absolutely positive

Oh I forgot to tell you, I have input on pin 7 of IC4, but pins 3 and 4 don't give me any delayed signal!

I had the trimpots on max so that could explain the high voltages, here are some new ones, it's still not working and my audio probe tells me the problems has something to do with the BBDs:

IC4 - v3205
1   0
2   4.70
3   4.65
4   4.65
5   8.14
6   4.70
7   4.07
8   7.77

IC5 - v3205
1   0
2   4.70
3   4.66
4   4.68
5   8.14
6   4.70
7   4.18
8   7.77

Further tips would be greatly appreciated!

Ok still no sound but my voltages on the v3205s changed, are these good values?

IC4 - v3205
1   0
2   4.70
3   4.70
4   4.70
5   8.15
6   4.70
7   6.97
8   7.78

IC5 - v3205
1   0
2   4.70
3   7.75
4   7.75
5   8.15
6   4.69
7   8.15
8   7.78

Got it, just tried it, when I probe pin 7 on IC4 I get (distorted) sound, when I probe pin 3 and 4 on the same IC I don't get any sound. Just swapped IC4 and 5 around and had the same problem so I don't think it's the 3205s that are the problem.

Hi there,

I'm having trouble getting my Dirtbag to work. With all the controls maxed, there is barely any sound coming from the pedal and no delay is noticeable. Here are the voltages, hope someone can point me in the right direction!

Power supply voltage = 9.32v

IC1 - TL072
1   4.65
2   4.30
3   4.43
4   0
5   4.23
6   4.65
7   4.67
8   9.32

IC2 - NE570
1   1.30
2   1.80
3   1.80
4   0
5   1.81
6   1.79
7   7.89
8   1.81
9   1.81
10   6.69
11   4.48
12   1.81
13   9.32
14   1.80
15   1.80
16   0.03

IC3 - TL072
1   4.65
2   4.65
3   4.43
4   0
5   4.50
6   4.65
7   4.65
8   9.32

IC4 - v3205
1   0
2   4.67
3   2.98
4   2.98
5   8.14
6   4.68
7   3.56
8   0.03

IC5 - v3205
1   0
2   4.67
3   3.24
4   3.25
5   8.13
6   4.67
7   4.20
8   0.06

IC6 - TL072
1   4.20
2   4.20
3   4.08
4   0
5   5.19
6   5.36
7   5.36
8   9.32

IC7 - TL062P
1   fluctuates (3.85 - 5.71)
2   4.72
3   fluctuates (4.70 - 5.00)
4   0
5   fluctuates (4.71 - 4.77)
6   4.56
7    fluctuates (4.67 - 4.89)
8   9.32

IC8 - TL072
1   4.66
2   4.66
3   4.51
4   0
5   6.07
6   6.68
7   6.67
8   9.32

IC9 - CD4047BCN
1   4.30
2   4.98
3   4.98
4   9.32
5   9.32
6   9.32
7   0
8   0
9   0
10   4.67
11   4.67
12   0
13   4.35
14   9.32