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OPA134 based guitar preamp with tone control - FINAL

OPA134 based guitar preamp with tone control - FINAL PUBLIC

Unity gain electromagnetic and piezo with input buffering and tone control guitar preamp using OPA 2134

by p-we | updated July 05, 2022

guitar   op-amp   piezo   preamp  

Fever 6j1 Tube Pre-amp Circuit

Fever 6j1 Tube Pre-amp Circuit PUBLIC

English[US notation] version of a Chinese schematic for the "Fever 6j1 Tube Pre-Amp".

by jcolber2 | updated April 11, 2016

6j1   fever   pre-amp   preamp   tube  



by geedeebee | updated January 07, 2014

audio   guitar   jfet   preamp   stompbox  

Single Supply Mic Amp w power supply rej

Single Supply Mic Amp w power supply rej PUBLIC

This circuit is a simple mic-bias circuit for single supply applications with simple power supply rejection. Use any suitable op amp with supply voltage and gain BW response for your application....

by manu | updated April 02, 2013

audio   battery-powered   compander-code   mic   mic-bias   preamp   single-supply   supply-rejection  

Single Supply Simple OpAmp gain circuit for mic test on microntrollers w A/D

Single Supply Simple OpAmp gain circuit for mic test on microntrollers w A/D PUBLIC

Simple amplifier which takes mic audio input and provides gain & DC centering for single supply microcontroller input

by manu | updated March 16, 2013

analog   audio   battery   microphone   preamp   single-supply  

RIAA preamp


by qsaldana | updated March 14, 2013

preamp   riaa  

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