Small fixes 2012-09-17

[ElectroMaster]

ElectroMaster submitted a new article:

Toy Organ - This circuit produces a tone according to the button being pressed.

This circuit produces a tone according to the button being pressed. Only 1 button can be pressed at a time, that's why it is called a monophonic organ. You can change the 1k resistors to produce a more-accurate scale.

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