Description: The scale of the circuit can produce different sounds, different keys correspond to different scales. The play of electronic organ is to use the fingers to press different keys to produce different scales. The principle is that electric circuit IC555 is connected to an oscillator, the oscillation frequency is determined by the resistance of the circuit (R1 - R10), and to produce different sounds in different keys. Specification: Power Supply: 3~12V Material: Double-sided 1.6mm FR-4 Board Size: Approx. 135 x 22 x 20mm Package Includes: 1 Set DIY Electronic Organ Module
