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        <title>Paper-PCBs paper_synth</title>
        <description></description>
        <link>https://paperpcb.dernulleffekt.de/</link>
        <image rdf:resource="https://paperpcb.dernulleffekt.de/lib/tpl/writr/images/favicon.ico" />
       <dc:date>2026-04-12T23:01:53+0200</dc:date>
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                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:calibration_keyboard&amp;rev=1644527955&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:dc-dc_0512_converter&amp;rev=1644527983&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:faceplates&amp;rev=1591906408&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:midi_to_cv&amp;rev=1644527546&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:paper_synth_main&amp;rev=1644527672&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps000_power-supply&amp;rev=1644527929&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps100_hard-sync-osc&amp;rev=1591906408&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_vco&amp;rev=1644527700&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_wc&amp;rev=1644527722&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps301_wavefolder&amp;rev=1591906408&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps401_clipmixer&amp;rev=1591906408&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps411_envamp&amp;rev=1591906408&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps808kd&amp;rev=1644527822&amp;do=diff"/>
                <rdf:li rdf:resource="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:usb_to_ffc_power_connector&amp;rev=1644528015&amp;do=diff"/>
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    <image rdf:about="https://paperpcb.dernulleffekt.de/lib/tpl/writr/images/favicon.ico">
        <title>Paper-PCBs</title>
        <link>https://paperpcb.dernulleffekt.de/</link>
        <url>https://paperpcb.dernulleffekt.de/lib/tpl/writr/images/favicon.ico</url>
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    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:calibration_keyboard&amp;rev=1644527955&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:19:15+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:calibration_keyboard</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:calibration_keyboard&amp;rev=1644527955&amp;do=diff</link>
        <description>Calibration Keyboard



The Calibration Keyboard is a handy tool for tuning the PS110 Voltage Controlled Oscillator.

Front:




Back:




Paper-PCB






----------

License

The Calibration Keyboard was designed by Wolfgang Spahn 2015-21.

It is licensed under a</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:dc-dc_0512_converter&amp;rev=1644527983&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:19:43+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:dc-dc_0512_converter</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:dc-dc_0512_converter&amp;rev=1644527983&amp;do=diff</link>
        <description>DC-DC 5Vto2x12V Converter Board



An USB powerd DC-DC Converter that provides +12V and -12V. It's based on the RECOM REC1.5-0512DR/X1 you can by for example at Pollin.de. The board has two control LEDs. Both are 2V, 1mA Low Current LEDs. If you use different LEDs you have to change the 10kOhm resistor.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:faceplates&amp;rev=1591906408&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-11T22:13:28+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:faceplates</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:faceplates&amp;rev=1591906408&amp;do=diff</link>
        <description>----------

Eurorack - Faceplates


----------



All faceplates are based on the construction details of Doepfer:

&lt;http://www.doepfer.de/a100_man/a100m_e.htm&gt;


 * ps110_faceplate

Details:

 Hight: 128.5mm

 Width: 50.5mm, 91.30mm

 Holes for the poti: 7.5mm

 Holes for the jack: 6.5mm

 Holes for the screws: 3.5mm</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:midi_to_cv&amp;rev=1644527546&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:12:26+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:midi_to_cv</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:midi_to_cv&amp;rev=1644527546&amp;do=diff</link>
        <description>PS201 - MIDI to CV

UsbMidi/Midi to Controll Voltage converter is the interface that lets other computers, synthesizers and controllers integrate into the modular synthesizer world. While an old standard, Midi keeps its place as the universal data connector in synthesizer world, as well as for other creative controllers ranging from vj and dj controllers, to custom diy button banks, and media artworks.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:paper_synth_main&amp;rev=1644527672&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:14:32+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:paper_synth_main</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:paper_synth_main&amp;rev=1644527672&amp;do=diff</link>
        <description>Paper Synthesizer



Paper Synthesizer is a modular analgue synthesizer. It allows to sculpt electric circuits into sonic waveforms.

Paper Synthesizer are compatible to eurorack.



Paper Synthesizer started as  a collaboration by Antti Pussinen und Wolfgang Spahn in 2014. It's design is based on Wolfgnag Spahn's</description>
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    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps000_power-supply&amp;rev=1644527929&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:18:49+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps000_power-supply</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps000_power-supply&amp;rev=1644527929&amp;do=diff</link>
        <description>PS000 - Power Supply



A power supply for Euro-Rack modules. It comes with +12V,-12V and 5V. The 12V provides 500mA current and the 5V 2A.


----------

Board





----------

Parts

Resistors

	*  1x 2k
	*  2x 4.7k

Semiconductors

	*  3x Low Current LEDs</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps100_hard-sync-osc&amp;rev=1591906408&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-11T22:13:28+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps100_hard-sync-osc</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps100_hard-sync-osc&amp;rev=1591906408&amp;do=diff</link>
        <description>PS100 Hard-Sync-Oscillator

by Antti Pussinen




Analogue sound synthesis is ““GOOD”” for sound art purposes because of its infinite resolution and natural way of sounding. Its technology also makes it easy to modify for added features. In a way one could see this form of sound generation as a way to sculpt electricity into waveforms. These waveforms can then be made audible by a speaker that transforms this waveform into movement in air.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_vco&amp;rev=1644527700&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:15:00+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps110_vco</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_vco&amp;rev=1644527700&amp;do=diff</link>
        <description>PS110 Voltage Controlled Oscillator

PS110 Voltage Controlled Oscillator the a saw wave core for a one volt per octave oscillator. The wave shaper board for the VCO is here: PS110_Wave Converter






A Voltage Controlled Oscilator, or vco, is the heart of any musical synthesizer. It usually forms the starting material for subtractive audio synthesis. 
An analog VCO of this kind creates an audible waveform by charging and discharging a capasitor. 
Voltage control enables one to control the frequ…</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_wc&amp;rev=1644527722&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:15:22+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps110_wc</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps110_wc&amp;rev=1644527722&amp;do=diff</link>
        <description>PS110 – Wave Converter

This is the wave shaper board for our Paper-Synthesizer 110 - VCO. The waveshaper converts saw wave to sine, square and triangular waves. It also ads and input and control for linear frequency modulation and pulse width modulation for square output.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps301_wavefolder&amp;rev=1591906408&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-11T22:13:28+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps301_wavefolder</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps301_wavefolder&amp;rev=1591906408&amp;do=diff</link>
        <description>PS301 - Diode Wavefolder

by Antti Pussinen


Ps301 Diode Wavefolder is a dynamic waveform processor module, that changes the color and the overtones of a sound, while keeping the same base note. The design is originally Jürgen Haible's take on “Serge Wave Multiplier, middle section</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps401_clipmixer&amp;rev=1591906408&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-11T22:13:28+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps401_clipmixer</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps401_clipmixer&amp;rev=1591906408&amp;do=diff</link>
        <description>Paper Synth 401 Three To One Clipping Mixer

Paper Synth 401 is a three channel mixer with built in diode clipping for each channel. Saturation is a classic way to get more character out of synthesized sounds. Sometimes it is also needed to ad some edginess to waveforms in order to give some gripping surface to, for example resonant filters.
The sound of the clipping is not like super harsh guitar pedal kind of distortion, instead it adds color and harmonics to the sound to make it more interest…</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps411_envamp&amp;rev=1591906408&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-11T22:13:28+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps411_envamp</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps411_envamp&amp;rev=1591906408&amp;do=diff</link>
        <description>PS411 EnvAmp (Attack/Release Envelope Generator &amp; Opto-VCA)

by Antti Pussinen


The Dynamics of synthesized sounds are controlled with a Voltage Controlled Amplifier, or VCA.
In a classical subtractive synthesizer arrangement the VCA is controlled through an  envelope generator, allowing more interesting dynamic possibilities than just the on/off of a note gate.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps808kd&amp;rev=1644527822&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:17:02+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:ps808kd</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:ps808kd&amp;rev=1644527822&amp;do=diff</link>
        <description>Paper-Synthesizer 808KD - Kick Drum Module

A Functional Clone of the Tr-808 Bass Drum


The sound of 808 bass drum is one of the most recognizable electronic instruments. It is The sound of 80´s hip hop and electro and one of the most cloned and copied electronic musical circuits of all time.</description>
    </item>
    <item rdf:about="https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:usb_to_ffc_power_connector&amp;rev=1644528015&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-02-10T22:20:15+0200</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>paper_synth:usb_to_ffc_power_connector</title>
        <link>https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:usb_to_ffc_power_connector&amp;rev=1644528015&amp;do=diff</link>
        <description>USB to FFC Power Connector

USB to Flat Flexible Cable (FFC) Connector Power Connector for the PS110 - VCO.

Remove the unneeded pins:



The connection:



With a little copper stripe board:



Soldered:



Connect all grounds:




The marked connector:



----------</description>
    </item>
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