June 7, 2021 at 3:33 pm #19127
I have sound !
the switch of sw2 was defective.
This during a new problem the circuit produces a high pitched sound even without playing the guitar. and the more I increase the gain the louder the sound.June 7, 2021 at 4:22 pm #19129
OK. We get to start over on a new issue!
First. You have “sound”. Do you have the tremolo working? Do all controls function properly? Do they do what they are supposed to do?
Now, for the high pitched noise. It is likely oscillation in an opamp. Check to see if C2 is a correct value and is soldered properly. Check ALL ground connections on the board and to jacks.June 7, 2021 at 5:13 pm #19132BarryKeymasterJune 7, 2021 at 6:17 pm #19135
yes the tremolo works and the potentiometer too. and they do what they’re supposed to do.
speed ok, spacing ok, smooth ok, depth ok, gain ok.
C2 is correctly solder and Displays 3.06k.
All ground are connected.June 7, 2021 at 8:16 pm #19136
Is the noise present if you disconnect the guitar cable from the effect? Is the effect powered by an external supply? Does the noise go away if you use a battery for power?June 8, 2021 at 6:44 am #19146
Yes the noise is present when I unplug the guitar.
The effect is powered by an external power supply.
It does not work with a battery. I measure the battery and has 8.89vJune 8, 2021 at 12:57 pm #19155
Double check your wiring for the battery clip. It appears that you do have one wired since there is a second power wire going to the power jack. The stereo IN jack acts like a switch for the ground to turn the power ON when a guitar cable is inserted.
I want to see if the noise is coming in from the external power supply. A battery will not produce noise.June 11, 2021 at 6:25 am #19183
It took a long time to find a new battery. 😉
the system works quietly with the battery.
what to do to stop having noise with the power supply?June 11, 2021 at 9:22 am #19185figParticipant
Hey, that is great to hear!June 11, 2021 at 12:23 pm #19187
Now that you have the pedal working properly on battery power, you need to consider purchasing a better external power supply.
Feel free to contact us again to assist with your next pedal build if needed.June 11, 2021 at 3:06 pm #19190
I tried with my 1 spot CS7 from truetone and the noise is still a bit there. weaker but still present.
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