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, October 15, 2019

Ibanez NB-10 Noise Buster

Had a recent request for this one and thought it'd be a nice break from overdrives. Part of the Ibanez 10-series, it's a noise gate that utilizes the LM1894 noise control chip. You can still get the chip off eBay and the SMD version is available from Arrow, Mouser, etc. You can wire it for true bypass or if you want buffered bypass that option is available as well. Should work in either a 1590B or 125B. Schematic for reference.


  1. any known replacements for the LM1894N?

  2. a minor mistake but the large filter caps should be labeled 100uf and not 100nf. i'm going to build it as soon as my LM1894N arrives.

  3. Replies
    1. You build this one ... how the sound ... can you send video sample to me if you can i give my email to you

  4. i just built it. it's really good with single coil pickups and electromagnetic interference. it doesn't function as a noise gate, though. just filtering.

  5. Might built this one and lets see what the outcome.. more power!!

  6. can anyone provide pin voltage for the lm1894 for this layout ? I have checked my circuit many times and now wondering if its not my ic that is flawed.

  7. hi folks, can I replace the 5817 schottky diode with 5819 in this case?