Programmable Drum Machine

This sequencer, called Drumssette, uses audio tape to churn out some beats. [Mike Walters] built this around a Tascam four track cassette recorder. The tape inside has a different drum sound on each of the tracks, with a corresponding row of red buttons. Pushing a button adds the drum sound to the loop on that beat. He’s using a series of digital logic gates to patch through the sounds as well as clocking the device from one of the tape’s tracks. It’s pretty Ā neat Ā to see the focus selector used in the video after the break to sync up the beginning of the repeated drum patterns. This isn’t the first time we’ve seen [Mike’s] work. If you missed it last year take some time to review the Melloman.

[youtube=http://www.youtube.com/watch?v=vaK_oTPIxNY]

Hardware Ā walk through

[youtube=http://www.youtube.com/watch?v=spp2m0t2jxg]

Audio demonstration

13 thoughts on “Programmable Drum Machine

  1. @ Squintz – Looks like hundreds of hours of WORK.

    A true labor of love which I appreciate as a proponent of analog audio. Very well thought out and executed. A great write-up too!

  2. What is interesting about this build, besides how clever and brilliant it is, is how this is a great product idea about 30 years too late. If someone had built an unit like this in the late 70s/early 80s, it would’ve been in the bedroom of every synth-crazy teenager. And right next to it would have been a stack of a dozen tapes of different drum sounds and styles.

    Although I assume it could’ve been built inexpensively (it’s basically a playback-only 4 track cassette and some logic), which might be too big an assumption.

    Anyways, great hack! Super clever idea and good execution.

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