Modified sound switcher loedel B. Berdan... [et.al].

Thesis (Bachelor of Technology major in Electrical Technology) -- University of Rizal System-Morong.

EXECUTIVE SUMMARY: This study aimed to develop a Modified Sound Switcher out of locally available materials, to be used as means of controlling the lightning circuit in an electrical circuit. The study was conducted at the University of Rizal System, Morong during school year 201-2017. There were, thirty (30) respondents, ten (10) professors in Electrical Technology as experts and twenty (20) fourth year students from Bachelor of Technology as end users, they were chosen using purposive sampling technique. They evaluated the study in terms of usefulness, safety and maintenance, durability and functionality. The data gathered in the study were statistically treated using qualitative description, weighted mean and t-test. The Modified Sound Switcher was tested for operation where troubles are observed and revised. Through try-out and revisions made, the project reached the functional output and attained the project objective. On the acceptability of the developed device: In terms of usefulness, the developed Modified Sound Switcher obtained a weighted mean of 4.5 for the end-users and 4.7 for the experts. In terms of safety and maintenance, the developed modified sound switcher got a weighted mean of 4.7 from both groups of respondents. In terms of durability, the developed Modified Sound Switcher obtained a weighted mean of 4.7 for the end-users and 4.9 for the experts. In terms of functionality, the developed Modified Sound Switcher obtained a weighted of 4.5 for the 4.5 for the end-users and 4.7 for the experts. The null hypothesis that there is no significant difference on the evaluation made by the experts and end-users on the acceptability of the modified sound switcher in terms of usefulness, safety and maintenance, design, and functionality. The null hypothesis that here is no significant difference on the evaluation made by the two groups of respondents were accepted. Based on the findings and conclusions, the recommendations were hereby offered: the Modified Switcher was recommended for patenting: use a more precised microphone for efficient voice receiving: other researchers should conduct similar study to enhance other electrical devices; University Research Division should conduct a feasibility study for the possibility of mass production for the developed device.