This article has multiple issues. Please help or discuss these issues on the talk page. (Learn how and when to remove these template messages)
This article possibly contains original research. Please by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed.(July 2020) (Learn how and when to remove this template message)
This article does not cite any sources. Please help by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: – ···scholar·JSTOR(July 2020) (Learn how and when to remove this template message)
(Learn how and when to remove this template message)
A kraakdoos
A kraakdoos or cracklebox is a custom-made instrument, in the form of a noise-making electronic device. It is a small box with six metal contacts on top, which generate various unusual sounds and tones when pressed by the performer's fingers. The human body becomes a part of the circuit and determines the range of sounds possible, thus different people shall generate different results.
The concept was first conceived by Michel Waisvisz and Geert Hamelberg in the 1960s, and developed further in the 1970s when Waisvisz joined the STEIM foundation in Amsterdam, Netherlands. The kraakdoos is a simple device, based on a single operational amplifier (one of the earliest models to be produced) and a few transistors, and can be constructed with only a basic understanding of electronics.
