Vermes
Advanced Member level 4
Presented here design is a small headphone amplifier for electrical guitar. It uses the so-called joule thief – a converter used for the maximal use of batteries AAA. Such a converter gives more than 3V. Another important part of the project - schematic of an audio amplifier can be easily found on the Internet. This construction uses one built on three transistors. Guitar used here is basic Epiphone.
Small size of the amplifier was the most important assumption. It was to be something similar to Vox Amplug. Volume control could be done only through the guitar.
Schematic differs by the lack of a capacitor, because it caused that the converter did not work.
PCB:
List of elements you need:
- housing
- jack plug
- 3,5mm mono socket
- switch
Pictures:
Link to original thread - "Wzmacniaczyk" gitarowy zasilany z jednej baterii AAA
