And along the way, we’ll be laying the groundwork for much more complicated circuits later on. We’re starting at the beginning, but the curve is steep. Our simple oscillator circuit is based ...

Mike Wyatt uses the built-in Bode function of modern DSOs to investigate a Peltz oscillator with injection locking.

The speaker’s diaphragm resets the cone, completing the circuit and repeating ... the definition of an audio oscillator somewhat, but you’ve got to admit it’s simple. Can you get it even ...

Figure 1 shows a variation on a sine wave oscillator, it uses just two transistors and a single variable resistor to set the frequency. Figure 1 Just a couple of components are needed for a simple ...