To create a simple rectifier, users are encouraged to search for tutorials online, with one participant suggesting a specific link that appears instructive. The discussion briefly shifts to nostalgia about old selenium rectifiers and the past practices of replacing tubes in electronics, highlighting a more hands-on approach to repairs. Participants reminisce about tube testers commonly found in stores, reflecting on the accessibility of electronic components in earlier times. The original poster expresses gratitude for the assistance and indicates plans to proceed with building the rectifier. Overall, the conversation combines technical advice with a nostalgic look at the evolution of electronics.