User talk:103.25.169.92

October 2020
Hello, I'm DavidBrooks. I wanted to let you know that one or more of your recent contributions to Bipolar junction transistor have been undone because they appeared to be promotional. Advertising and using Wikipedia as a "soapbox" are against Wikipedia policy and not permitted; Wikipedia articles should be written objectively, using independent sources, and from a neutral perspective. Take a look at the welcome page to learn more about Wikipedia. Thank you. David Brooks (talk) 14:51, 2 October 2020 (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.