The operational amplifier, or op amp, is one of the most basic building blocks used in analog circuits ... stability and turn your amplifier into an oscillator. Bandwidth isn’t the only measure ...

It works by having a voltage-controlled oscillator (VCO ... There are better portamento circuits out there, but they’ll probably involve op-amps. As a quick aside, you can make a rudimentary ...

Figure 1 shows a variation on a sine wave oscillator, it uses just two transistors and a ... Usually this filter is implemented around an operational amplifier, it can also be implemented around an ...

In the simpler circuit, the output of a regular oscillator stage modulates the ... transistors or op-amps. For modern optical tremolo, an LDR is usually combined with an LED, rather than a neon ...