Ralf's Piezo-Amp: Difference between revisions
| (12 intermediate revisions by the same user not shown) | |||
| Line 22: | Line 22: | ||
== Stereo-Piezo Wurmophon - Dual Channel Piezo-Amp == | == Stereo-Piezo Wurmophon - Dual Channel Piezo-Amp == | ||
=== First experiments === | |||
[[File:Listening WormCompost.jpg|x220px|thumb|left|Testing the Wurmophon in a compost bin]] [[File:Dusjagr kemiosaari.jpg|x240px|thumb|none|Testing the Wurmophon in the archipelago beyond Kemiösaari, FI]] | [[File:Listening WormCompost.jpg|x220px|thumb|left|Testing the Wurmophon in a compost bin]] [[File:Dusjagr kemiosaari.jpg|x240px|thumb|none|Testing the Wurmophon in the archipelago beyond Kemiösaari, FI]] | ||
Working on a new design for a DIY workshop to make a dual channel Piezo-Amp optimized for minimum parts and easy to solder during a short workshop. Also changing to low power op-amp such as the MCP6002, so we can power it from a recharchable 3.7V LiPo or 5V powerbank. | Working on a new design for a DIY workshop to make a dual channel Piezo-Amp optimized for minimum parts and easy to solder during a short workshop. Also changing to low power op-amp such as the MCP6002, so we can power it from a recharchable 3.7V LiPo or 5V powerbank. | ||
=== Version 0.5 working === | |||
[[File:StereoWurmophon 04.jpg|400px]] [[File:StereoWurmophon 04 pink.jpg|400px]] | |||
=== Schematic 0.5 === | === Schematic 0.5 === | ||
[[File:Stereo PiezoAmp schematic screenshot.jpg|640px]] | |||
Download full schematic: [[File:Stereo PiezoAmp schematic.pdf]] | |||
=== Full docu, kicad and github === | |||
[[File: | ==== Parts Placement - Handout ==== | ||
[[File:StereoWurmophon 05 partsplacement.jpg|640px]] | |||
[[File:StereoWurmophon 05 screenshot.jpg|640px]] | |||
==== Mask ==== | |||
'''Version 0.5''' | |||
[[File:MASK stereoWurmophon 05 m.png|400px]] | |||
'''Reworked, rounded tracks and new label'''s | |||
[[File:MASK stereoWurmophon 06.png|400px]] | |||
==== github ==== | |||
coming soon... | |||
= Older Versions = | = Older Versions = | ||
| Line 86: | Line 113: | ||
Working on github: https://github.com/sgmk/3Channel-PiezoAmp | Working on github: https://github.com/sgmk/3Channel-PiezoAmp | ||
= More about Piezo Amps = | |||
https://sound-au.com/project202.htm | https://sound-au.com/project202.htm | ||
Latest revision as of 18:40, 16 September 2024
Preparing the Piezo-disc with cable and plug
Was würde Uwe tun? Optimized values und minor changes
- 1M voltage divider and smaller cap
- diodes both to GND, limit input voltages
Download handout: File:PiezoAmp 1channel V2 2.pdf
updated schematics
Mask
Stereo-Piezo Wurmophon - Dual Channel Piezo-Amp
First experiments
Working on a new design for a DIY workshop to make a dual channel Piezo-Amp optimized for minimum parts and easy to solder during a short workshop. Also changing to low power op-amp such as the MCP6002, so we can power it from a recharchable 3.7V LiPo or 5V powerbank.
Version 0.5 working
Schematic 0.5
Download full schematic: File:Stereo PiezoAmp schematic.pdf
Full docu, kicad and github
Parts Placement - Handout
Mask
Version 0.5
Reworked, rounded tracks and new labels
github
coming soon...
Older Versions
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
Masks
Schematic
Extra Puffer for Batterie and DC-Power supplier
> bei batteriebetrieb noch 100uF-470uF elko als puffer,
> bei netzteilbetrieb mindesten ein rc glied R10/220uf dazu!
Other Op-Amps for lower supply Voltages
MCP6002, MCP602, TLC272, LMV358, TLV9002
reworked by dusjagr Single Channel
- Minor changes
- optimized for SMD components
- mini-Jack and Pot on PCB
Optional changes to some values
Masks
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