Hi everyone, newbie here!
I play the Cavaquinho, a sibling of the Ukulele that uses steel strings and has a bright sound. We use piezo transducers to pick up the sound, normally two small discs underneath the instrument's top board.
It works well, but it has a high impedance, and we need to put a lot of gain in the mixer. So I would like to make an all-in-one pedal to make it better. The chain would be something like this:
The Digital Tuner is something I worry about later.
For the Preamp with tone controls, I thought about using one described by Rod Elliot at https://sound-au.com/project202.htm
Then I need to create the boost and DI box output. Can I use the OPA2134 to achieve this as well (I bought 5 of them)? I would like to power this either using a 9V battery or a rechargeable 18350 lithium battery.
Is my project feasible? Am I missing something?
Cheers!
I play the Cavaquinho, a sibling of the Ukulele that uses steel strings and has a bright sound. We use piezo transducers to pick up the sound, normally two small discs underneath the instrument's top board.
It works well, but it has a high impedance, and we need to put a lot of gain in the mixer. So I would like to make an all-in-one pedal to make it better. The chain would be something like this:
The Digital Tuner is something I worry about later.
For the Preamp with tone controls, I thought about using one described by Rod Elliot at https://sound-au.com/project202.htm
Then I need to create the boost and DI box output. Can I use the OPA2134 to achieve this as well (I bought 5 of them)? I would like to power this either using a 9V battery or a rechargeable 18350 lithium battery.
Is my project feasible? Am I missing something?
Cheers!
Based on some stuff I found on the internet, I made the following schema. I am not sure about the resistors and capacitors' values, though.
