Hi everyone, this is my very first thread.
My father and I are building a DIY piezo system to amplify my upright bass.
We've already made the pickup, now we need a buffer preamp because obviously if I plug the pickup straight to the input of my amp it sounds like absolute dog ****.
I've already tried googlin' some schematics, but I couldn't find any true solutions. I'd like to make it in a pedal format to include it in my pedal board for gigs and I'd also like it to be powered by a DC adapter rather than a 9V battery like all the designs I've found online. It'd be nice to have a HPF pot as well.
Thanks in advance for your help.
My father and I are building a DIY piezo system to amplify my upright bass.
We've already made the pickup, now we need a buffer preamp because obviously if I plug the pickup straight to the input of my amp it sounds like absolute dog ****.
I've already tried googlin' some schematics, but I couldn't find any true solutions. I'd like to make it in a pedal format to include it in my pedal board for gigs and I'd also like it to be powered by a DC adapter rather than a 9V battery like all the designs I've found online. It'd be nice to have a HPF pot as well.
Thanks in advance for your help.
So simplest would be FET input opamp such as the old TL071 which has very low power consumption fed from a 12v DC power supply.
A pot could be incorporated for an adjustable high pass filter but you need to specify the 3db frequency eg 20Hz, or might you mean LPF to filter out high frequencies eg to remove harmonics.
https://forum.allaboutcircuits.com/threads/tl071-based-bass-preamp.105021/
https://www.petervis.com/Amplifiers/simple-guitar-amplifier/simple-guitar-amplifier.html
A pot could be incorporated for an adjustable high pass filter but you need to specify the 3db frequency eg 20Hz, or might you mean LPF to filter out high frequencies eg to remove harmonics.
https://forum.allaboutcircuits.com/threads/tl071-based-bass-preamp.105021/
https://www.petervis.com/Amplifiers/simple-guitar-amplifier/simple-guitar-amplifier.html