Ralf's Piezo-Amp: Difference between revisions

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== Preparing the Piezo-disc with cable and plug ==
[[File:Lerman SolderPiezoDisc.jpg|640px|thumb|none|From Richard Lerman, https://sonicjourneys.com/]]
== Was würde Uwe tun? Optimized values und minor changes ==
[[File:Uwe sticker.jpg|thumb|200px]]
* 1M voltage divider and smaller cap
* diodes both to GND, limit input voltages
[[File:PiezoAmp_V2_2_parts.jpg|800px]]
Download handout: [[File:PiezoAmp 1channel V2 2.pdf]]
=== updated schematics ===
[[File:PiezoAmp V2 2 schamtics.jpg|400px]] [[File:PiezoAmp V2 2 THT parts.jpg|400px]]
=== Mask ===
[[File:MASK PiezoAmp V2 2.jpg|400px]]
== 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]]
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 ===
[[File:Stereo PiezoAmp schematic screenshot.jpg|640px]]
Download full schematic: [[File:Stereo PiezoAmp schematic.pdf]]
=== Full docu, kicad and github ===
==== 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 =
== Ralf's Single Channel ==
== 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 ===
=== Boards ===


[[File:RalfsPiezoAmp_example.JPG|400px]]
[[File:RalfsPiezoAmp_example.JPG|400px]][[File:RalfsPiezoAmp_instruction.JPG|400px]]
 
=== Masks ===


[[File:RalfsPiezoAmp_instruction.JPG|400px]]
[[File:MASK PiezoAmp V1 0.png|180px]]


=== Schematic ===
=== Schematic ===


[[File:Piezo_pre_workshop_circuit.jpeg|400px|link=Ralf's Piezo-Amp]]
[[File:Piezo_pre_workshop_circuit.jpeg|400px]]


=== Extra Puffer for Batterie and DC-Power supplier ===


=== dusjagr's case ===
> 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
[[File:MASK PiezoAmp 1channel 2 0.png|640px]]
=== Optional changes to some values ===
[[File:PiezoAmp Bestuckung dusjagr.jpg|400px]] [[File:Ralf Piezo-Amp schematic reworked.jpg|400px]]
=== Masks ===
[[File:MASK PiezoAmp V2 0.png|180px]]
[[File:MASK PiezoAmp V2 1.png|180px]]


== SMD 3-Channel Version with Hammond case ==
== SMD 3-Channel Version with Hammond case ==
Line 20: Line 111:
coming soon...
coming soon...


== More about Piezo Amps ==
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
[https://www.hackteria.org/wiki/RO%C5%A0A_-_Regional_Open_Science_Hardware_%26_Art,_Indonesia#amps_amps_amps_amps Experiments during ROSA]
[https://videoplayer.telvue.com/player/68qsvCvwMj4wgpwqBaPQYaria-e4YBsa/ Videos by Richard Lerman] [https://sonicjourneys.com/ Richard Lerman]
[https://endevco.com/Our-Resources/ask-the-experts/What-is-a-charge-amplifier-and-why-do-I-need-one What is a charge amplifier and why do I need one?]

Latest revision as of 18:40, 16 September 2024

Preparing the Piezo-disc with cable and plug

From Richard Lerman, https://sonicjourneys.com/

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

Testing the Wurmophon in a compost bin
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.

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

Experiments during ROSA

Videos by Richard Lerman Richard Lerman

What is a charge amplifier and why do I need one?

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