Pencil Case Transmitter Post author:Phil Post published:June 19, 2018 Post category:Background_history / tech_ventures Post comments:0 Comments A great place to hide a walkie talkie circuit: inside a pencil case! The microphone is in the pencil sharpener. Share this:ShareClick to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Phil Teacher with tech You Might Also Like Recycling Machine July 15, 2023 Unity learning December 9, 2022 Code Club 2020 January 1, 2020 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email. Δ