This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Tuesday, November 20, 2018

Noise Gate

Here's an interesting and fairly simple noise gate circuit sent to me by Stanik Nupel from a Polish electronics book. Schematic and Stanik's original layout can be found here. The switch isn't in his original layout, so it may not be all that necessary. It'll be a tight squeeze in a 1590B, but should fit especially if you're using low profile jacks. Otherwise it'll fit nicely in a 125B with top mounted jacks.




31 comments:

  1. Seems to be an easy build, so I'm gonna give this one a try... just a simple question: what's the function of the switch?

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    1. Not sure about it. Hopefully Stanik will chime in with some info.

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  3. The switch turns off the gate and the signal runs directly.You may not mount a 470ohm resistor and omit the breaker.

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  4. what can i try instead of the bf245. will a j201 replace that?

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    1. It should be good, just note that J201 has the reverse polarity.

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  5. it looks like a simple version of a Boss NF1

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    1. It works very similarly. The 1 micro capacitors returned to each other by the minus in the scheme are tantalum. I have not tried with ordinary electrolytes and I do not know if it will work. Tantals work well.

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  6. Hi guys, Is this verified? I have tried to build it and hadn't got that sound what so ever.

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  7. You must have some mistake. Verified and works.

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    1. Thank you so much. I'll try it again.

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    2. I noticed my mistake. After it was remaking, that moved perfectly. This is great pedal. I Verified too.

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    3. I've made it but cut SUSTAIN a lot. What components should I change

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  8. I'm using google translator...

    Does this circuit work?

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  9. the pedal works, but it is making a loud noise.

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  10. Works. I added 1M resistor from T8 collector to ground to avoid pop when closing the gate.

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  11. What components should I mess with to make it a line level circuit?

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  13. Works well. Verified. Note the 1 micro capacitors. They should be tantalum.

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    3. I already made it but if sensivity wants to clean the nois d it's not full but it cuts sustain. If we turn it full at the end does the noise sound? How about this?

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    4. @Nupel I've made it but cut SUSTAIN a lot. What components should I change?

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    5. @Nupel I've made it but cut SUSTAIN a lot. What components should I change

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    6. @Nupel I've made it but cut SUSTAIN a lot. What components should I change

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  14. Could i use a500k instead of b500k?

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