This general-purpose transistor audio amplifier was found in the March 1990 issue of Radio Electronics magazine. The power supply must be dual.
This circuit of a few tens of milliwatts of power requires a single source. We found it in a Radio...
This circuit has two stable states such that at each instant only one SCR leads. The state change is...
An stable multivibrator with 50% of duty cucle can be mounted using the 555 as shown by the...