This oscillator with emitter follower was found in an American documentation from the 80's. The circuit generates 100 MHz signals and the transistors admit modern equivalents.
This circuit was found in a 1999 publication. Its purpose is to flash two LEDs according to the...
This two-transistor emitter-coupled oscillator circuit with capacitive feedback was found in the...
This circuit is from an old operational amplifiers manual. However, the setting applies to modern...