Ralf's Piezo-Amp

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Preparing the Piezo-disc with cable and plug

coming soom...

Ralf's Single Channel

Our good friend Ralf (http://www.ralfschreiber.com/) has shown us his nice new workshop module for making a single channel piezo pre-amp during HOME MADE 2020.

Some discussion on how to use a linear pot that reacts logarithmically by adding / chaning one of the resistors?

Boards

RalfsPiezoAmp example.JPG

RalfsPiezoAmp instruction.JPG

TL072-Piezo-Pre.jpg

Schematic

Piezo pre workshop circuit.jpeg

Extra Puffer for Batterie and DC-Power supplie

> bei batteriebetrieb noch  100uF-470uF elko als puffer,

> bei netzteilbetrieb  mindesten ein rc glied R10/220uf dazu!

dusjagr's case

SMD 3-Channel Version with Hammond case

coming soon...

Working on github: https://github.com/sgmk/3Channel-PiezoAmp

More about Piezo Amps

https://sound-au.com/project202.htm