This contains eight square-wave oscillators that are triggered in a eight step sequence.
You have control over the speed of the sequencer as well as the pitch of each step. There is also a built in low-pass filter and volume control. With the LPF rolled down you can raise the pitch of an individual step out of range, essentially turning off that step.
This syncs up with other devices that make use of 5volt clock. Over 1/8" (3.5mm) jacks it has a sync input and two sync outputs, one that outputs clock for each step and one that outputs clock per full sequence. This allows multiple units to sync up either step for step or over lapping. Sync in is closest to the DC input, in the middle is the sync out, and closest to the output jack is the sync out with one pulse per full sequence.
It is housed in an extremely tough, raw aluminum case. It is powered by an included 9volt battery or any 9volt center-negative DC adapter. It has a standard 1/4" jack that is easily connected to amps, effects or recording equipment. ... https://www.youtube.com/watch?v=64lU47Y-hhs
http://HandmadeElectronicInstruments.com
Built inside a jar, this synthesizer has a square-wave oscillator as well as sweeping LFO modulation effect. The pitch and speed are controlled by outside light sources hitting the two light sensors inside so there is a lot of room for experimenting.
All of the components are built in a three dimensional floating circuit that comes down from the lid of the jar.
A yellow LED pulsates in time. There is a single switch on top for power which is supplied by an included 9v battery, and a 1/4" output jack that makes it easy to connect to amps, effects, or recording equipment.
This was hand-built in a series of six.
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https://www.youtube.com/watch?v=ax6hz9HAHOw
http://www.handmadeelectronicinstruments.com/
Two square-wave oscillators built into a NES advantage controller with turbo.
http://www.etsy.com/shop/michaelrucci
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https://www.youtube.com/watch?v=1ED41mRFOmc
Square-wave generator with low and high pitch modes, eight tiny keys, frequency range and volume control.
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https://www.youtube.com/watch?v=3UMRt59JSF8
http://www.handmadeelectronicinstruments.com/
http://www.etsy.com/shop/MichaelRucci
This contains four square-wave oscillators that are triggered in a four step sequence.
You have control over the speed of the sequencer as well as the pitch of each step. There is also a built in low-pass filter and volume control. With the LPF rolled down you can raise the pitch of an individual step out of range, essentially turning off that step.
This syncs up with other devices that make use of 5volt clock. Over 1/8" (3.5mm) jacks it has a sync input and two sync outputs, one that outputs clock for each step and one that outputs clock per full sequence. This allows multiple units to sync up either step for step or over lapping. An example of syncing is at 1:52.
It is housed in an extremely tough, raw aluminum case. It is powered by an 9volt battery or 9volt center-negative DC adapter. It has a standard 1/4" jack.
...
https://www.youtube.com/watch?v=uDCEeIAFLlo
http://www.HandmadeElectronicInstruments.com
Pulsing square-wave generator built into an Atari paddle controller. Speed controlled by knob and pitch controlled by light sensor.
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https://www.youtube.com/watch?v=LLhxo0b1CG4
http://www.handmadeelectronicinstruments.com
Built inside a reused jar, this drone synthesizer consists of triple square-wave oscillators modulating against each other. The pitch of each is controlled by outside light sources hitting the two three sensors inside, so there is a lot of room for experimenting. Reacts well in dark settings with light sources such as flash lights, fire, video monitors, the sun etc.
There is a single switch on top for power which is supplied by an included 9-volt battery. A red LED indicates power and a 1/4" output jack makes it easy to connect to amps, effects, or recording equipment.
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https://www.youtube.com/watch?v=2oTGZ12tHE4