This toy transistorized organ was found in the May 1970 issue of Radio Electronics magazine. The trimpots are adjusted to the musical notes according to the key.
This circuit was found in an American documentation from the 60's. The circuit generates two...
Found in old documentation, this source uses an integrated circuit from that time, which is...
CL88020 is a Next-Generation Device Designed for Offline Lighting CHANDLER, Ariz., July 10, 2017 — A...