<![CDATA[The lack of conceptual understanding and psychomotor skills of vocational high school students on basic logic gates material is often triggered by the lack of visualization in conventional practice media. To overcome this challenge, this study aims to design and test the feasibility, practicality, and effectiveness of the Basic Logic Gate Training Kit integrated with Proteus simulation software. Using the ADDIE scheme Research and Development (R&D) methodology, this study involved 10th grade Audio Video Engineering students of SMK Negeri 3 Jombang as test subjects. The results of the expert assessment showed a level of material validity reaching 94.2% and media validation of 94.4%, which is in the very feasible category. From the practical aspect, the percentage of feedback from students reached 87.1% and from teachers 91.7% (very practical). Evaluation of the impact of media on cognitive achievement showed a jump in the average score from 66.00 to 89.44, supported by an N-Gain index of 0.68 (moderate category). Through the Paired Sample t-test and One Sample t-test, a significant intervention effect (p = 0.001) was proven on psychomotor and affective competencies, with a classical completion rate exceeding 100%. It can be concluded that this trainer-based media innovation integrated with simulation software is highly recommended to comprehensively boost the quality of vocational students' learning outcomes.]]>
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