Programmable musical bell / Nor ‘Aida Yusop and Shahida Yusof

• المؤلفون الرئيسيون: Yusop, Nor ‘Aida, Yusof, Shahida
• التنسيق: Student Project
• اللغة: English
• منشور في: 2003
• الموضوعات: Electronics; Apparatus and materials; Semiconductors; Detectors. Sensors. Sensor networks; Transmission lines; Applications of electronics
• الوصول للمادة أونلاين: https://ir.uitm.edu.my/id/eprint/50518/1/50518.PDF; https://ir.uitm.edu.my/id/eprint/50518/

The circuit presented here is that of a musical bell which may be programmed for generation of a number of musical notes. To design this circuit we need to use 4 types of ICs, resistors, capacitors, transistors, speakers, port meters, switches and diodes. 1C1 (NE555) is a timer. Frequency of the tim...