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Programmable Sequenser

Programmable Sequencer

Courtesy/Thanks to: Elektor (1979)

Description: There are a variety of different ways in which the control voltages can be programmed and stored: e.g. via potentiometers, switches, sample-and-hold circuits or digital memories. The method adopted here is to encode the voltage digitally and store it in a RAM. When the contents of the memory are read out, they are fed to a D/A converter, which provides an analogue signal suitable for feeding to the synthesizer VCOs. In addition to the pitch of the notes (i.e. their frequency), their relative length can also be programmed. The duration of each note can be selected in the ratio of 1:2:4:8.

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Files
elproseq.pdf
   Elektor Programmable sequenser.
Manufacturers
Elektor Electronics
   A Magazine that released many articles about DIY musical project during the 70's. It is still in pri