User talk:2001:44C8:4170:9D12:C15B:917E:C51A:7749

May 2023
Hello, I'm Jc3s5h. An edit that you recently made to Talk:Vacuum tube seemed to be a test and has been reverted. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Jc3s5h (talk) 17:33, 5 May 2023 (UTC)