PROFESSOR's LOG
conceived and compiled by 15min records

15min_records

The Kraakdoos (or Cracklebox) is a custom made battery-powered noise-making electronic device.

It is a small box with six metal contacts on top, which when pressed by fingers will generate all manner of unusual sounds and tones. The human body becomes a part of the circuit and determines the range of sounds possible — different people will 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 around a single operational amplifier (one of the earliest models to be produced) and a few transistors, and can be easily constructed by someone with a basic understanding of electronics.

The Kraakdoos (or Cracklebox) is a custom made battery-powered noise-making electronic device.

It is a small box with six metal contacts on top, which when pressed by fingers will generate all manner of unusual sounds and tones. The human body becomes a part of the circuit and determines the range of sounds possible — different people will 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 around a single operational amplifier (one of the earliest models to be produced) and a few transistors, and can be easily constructed by someone with a basic understanding of electronics.

4 notes

Keyboard of a Letter-Printing Telegraph Set built by Siemens & Halske in Saint Petersburg, Russia, ca. 1900

Keyboard of a Letter-Printing Telegraph Set built by Siemens & Halske in Saint Petersburg, Russia, ca. 1900

58 notes

dinosaurspen:

Remington Rand 409

dinosaurspen:

Remington Rand 409

87 notes

Vintage industrial telephone switchboard, mid century 1950s

Vintage industrial telephone switchboard, mid century 1950s

108 notes

paul tingen - ‘Toy’ instruments at Blanco’s studio, including a Casio VL1, Indian harmonium, Suzuki Omnichord, a ukulele and a child’s glockenspiel.

paul tingen - ‘Toy’ instruments at Blanco’s studio, including a Casio VL1, Indian harmonium, Suzuki Omnichord, a ukulele and a child’s glockenspiel.

2 notes

Panasonic TR005 (1972)

Panasonic TR005 (1972)

100 notes

A wall unit stereo with Sony components by George Ciancimino (1972)

A wall unit stereo with Sony components by George Ciancimino (1972)

49 notes

Teleavia PA 573 designed by Roger Tallon

Teleavia PA 573 designed by Roger Tallon

110 notes

Telefunken transistor radio, 1963. Sweet Mid-Century audio design.

Telefunken transistor radio, 1963. Sweet Mid-Century audio design.

73 notes

audio room

audio room

5 notes