Found in a 90s PE Hobbyst Handbook, this circuit mimics the sound of a space gun. The components are common, and changes can be made to modify the sounds.
In fact, the maximum output current of this source depends on the transformer which can be 6, 7.5, 9...
The figure shows a way to apply gain control to the LM3600 OTA. The circuit is from a Radio...
This application consists of a circuit that trips when the sensor resistance drops below a few...