User talk:103.99.148.194

December 2018
Hello, I'm JackintheBox. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to P–n diode— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Thanks. J ACKINTHE  B  OX   • TALK 05:38, 6 December 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

Please do not add or significantly change content without citing verifiable and reliable sources. Before making any potentially controversial edits, it is recommended that you discuss them first on the article's talk page. Please review the guidelines at Citing sources and take this opportunity to add references to the article. J ACKINTHE  B  OX   • TALK 05:38, 6 December 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

Please explain your contributions using a descriptive edit summary. Changing information on Wikipedia (such as numbers and dates) without explanation, as you did at Capacitor, may be confused with vandalism. Thank you. Isaidnoway (talk)  08:43, 6 December 2018 (UTC)

Please do not add unsourced or original content. Doing so violates Wikipedia's verifiability policy. If you continue to do so, you will be blocked from editing Wikipedia. Plandu (talk) 06:11, 26 December 2018 (UTC)

January 2019
Hello, I'm BRPever. I wanted to let you know that one or more of your recent contributions to Ruby laser have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Thanks. B R P  ever 06:06, 22 January 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

September 2019
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to Fall time have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the help desk. Materialscientist (talk) 08:17, 4 September 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.