/challenges-projects/project14/spring-clean/b/projects/posts/audio-toy-or-not-reallyHello everyone! Here is a fairly well-known circuit, and still good to build. First, by way of comparison, I want to show you a beautiful presentation from an older electronics magazine, circulating a long time ago, around the early 2000s. &quot;The preseen-USTelligent Community 12https://community.element14.com/challenges-projects/project14/spring-clean/b/projects/posts/audio-toy-or-not-reallySat, 07 Jun 2025 19:06:27 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:2add3a8d-49a0-4289-bc69-e89d18381301DAB1<p>Great build.</p><img src="https://community.element14.com/aggbug?PostID=28959&AppID=459&AppType=Weblog&ContentType=0" width="1" height="1">