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===Phase III=== | ===Phase III=== | ||
:Developing the initial experiment | :Developing the initial experiment. In this case, new features were added to the home made instrument. | ||
:Three extra "keys" -switches- were added to the design.Wiered to three extra 555 timers, | |||
:the keys decide which timers are connected and which are not.Resulting in a change in the output sound. | |||
::[[File:2sketch1.jpg|200px]] [[File:2sketch2.jpg|200px]] [[File:2in1.jpg|200px]] | ::[[File:2sketch1.jpg|200px]] [[File:2sketch2.jpg|200px]] [[File:2in1.jpg|200px]] | ||
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====the exhibition==== | ====the exhibition :==== | ||
===Electric Trumpet | ===Electric Trumpet=== | ||
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