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555 Oscillator Synth: Free Kontakt Library for Synthwave

555 Oscillator Synth is a free Decent Samples Kontakt library created from a real 555-timer hardware oscillator and suited to synthwave and experimental production.

August 27, 2026Audiartist Editorial

555 Oscillator Synth is a free Kontakt instrument from Decent Samples built from a real hardware circuit using a 555 timer. The recorded oscillator is turned into a compact synthwave-friendly Kontakt patch.

Decent Samples 555 Oscillator free Kontakt synth

A Hardware Synth as a Kontakt Instrument

The project is a great example of unusual sampling: instead of sampling an acoustic instrument, Decent Samples built a physical circuit, recorded its output and mapped the result for Kontakt.

What You Get

The free library includes a synth patch with ADSR shaping, convolution reverb and EQ. It is particularly useful for synthwave, retro electronic textures and experimental sound design where a slightly rough hardware character is welcome.

Video Tutorial

Watch the official Let’s Build a Synthesizer video tutorial.

Download

Download the free 555 Oscillator Synth library.