User talk:Aguinaldok4

May 2023
Hello, I'm John Maynard Friedman. I wanted to let you know that one or more of your recent contributions&#32;to Dollar sign have been undone because they did not appear constructive. If you would like to experiment, please use your sandbox. If you have any questions, you can ask for assistance at the Teahouse or the Help desk. Thanks. 𝕁𝕄𝔽 (talk) 10:19, 7 May 2023 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did at Low-noise amplifier. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use your sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Binksternet (talk) 19:45, 15 May 2023 (UTC)

July 2023
Please stop. If you continue to vandalize Wikipedia, you may be blocked from editing. MrOllie (talk) 15:01, 20 July 2023 (UTC)