Electronic Technics Facture about Switches Controlled by Sound and Light

The paper discuss the work principle of electronic switches controlled by sound and light,the circuit design and facture procedure,the choice and test of the electronic component,the skill of jointing,the test and notes of facture,etc.And the development and facture of electronic product is discussed.The discussion of electronic technics facture experience not only supply to the simple circuit of the electronic switches controlled by sound and light,but also the complex circuit.