Collosalus (MXR Flanger Clone) Strange Noise Problem

[mickeybellinello]

Hi to all!

Here I am with another problem! I just built my Collosalus, it works but there are some problems.
When width and manual pot are near fully counterclockwise I hear a strange sound (like a space sound...wiiiiuuu)
I made some measurement and I found some Voltage errors.
I power my collosalus at 9V. Here the measurement:

IC1:
Pin1-7.43
Pin2-7.31
Pin3-7.32
Pin4-0
Pin5-6.80
Pin6-7.28
Pin7-7.28
Pin8-14.73

IC2
Pin1-7.37
Pin2-7.38
Pin3-7.33
Pin4-0
Pin5-7.46
Pin6-7.37
Pin7-7.38
Pin8-14.73

IC3
Pin1-varies
Pin2-7.51
Pin3-varies
Pin4-0
Pin5-7.62
Pin6-7.63
Pin7-varies
Pin8-14.72

IC4
Pin1-7.29
Pin2-7.29
Pin3-7.21
Pin4-0
Pin5-7.33
Pin6-7.38
Pin7-7.42
Pin8-14.73

IC5
Pin1-14.73
Pin2-7.10
Pin3-7.14
Pin4-7.14
Pin5-7.20
Pin6-7.16
Pin7-7.16
Pin8-0
Pin9-7.16
Pin10-7.12
Pin11-7.16
Pin12-7.16
Pin13-mv
Pin14-7.16
Pin15-7.12
Pin16-mv

IC6
Pin1-7.18
Pin2-7.20
Pin3-circa12-14
Pin4-0
Pin5-7.20v
Pin6-0
Pin7-0
Pin8-14.72
Pin9-14.72
Pin10-10circa
Pin11-14.72
Pin12-circa12-14
Pin13-14.72
Pin14-14.72

IC7
Pin1-17.76
Pin2-0
Pin3-14.73

IC8
Pin1-1.9
Pin2-4.82
Pin3-0
Pin4-mv
Pin5-mv
Pin6-2.56
Pin7-1.44
Pin8-9.37

IC9
Pin1-14.72
Pin2-7.14
Pin3-8.22
Pin4-1.5
Pin5-0
Pin6-7.12
Pin7- 7-8 circa
Pin8- 7-8circa

I marked in red the totally wrong value.

Any ideas?

Thanks

[Fender3D]

What makes you think pin 5 voltage is wrong?
That's VCO output, if it wouldn't be ok your flanger won't work at all....

I think the noise you hear is heterodyne effect due to the charge pump,
Since Brian still sells the PCB, I think no other got the issue, then either you f*cked up some parts or you mounted them badly.

[mickeybellinello]

What makes you think pin 5 voltage is wrong?
That's VCO output, if it wouldn't be ok your flanger won't work at all....

I think the noise you hear is heterodyne effect due to the charge pump,
Since Brian still sells the PCB, I think no other got the issue, then either you f*cked up some parts or you mounted them badly.

I took the data sheet and I saw that on pin 5 the reference is 0 but now I understand.

Probably, I'll take a deeper look and I'll update you.