Our simple oscillator circuit is based around a logic inverter. An inverter is a chip that outputs the opposite logical voltage level from what’s put in: if the input sees the high voltage level ...

A simple circuit’s siren song . For the best results, we’ll need to check out some things that don’t appear on the data sheets, but let’s cut straight to something more practical: a working circuit.

But as an added twist, the oscillator is keyed by an ATtiny13 hooked to an LM335 temperature sensor, sending out the Celsius and Fahrenheit temperature in Morse every 30 seconds or so.

Overall, the effect is a negative resistance at the emitter terminal. This is what makes the UJT useful, especially in simple oscillator circuits. Working of Mock Flasher LED. UJT 2N 2646 is used as a ...

2. This basic test circuit is a Pierce-gate oscillator, which provides readout of crystal frequency. There are two resistor adjustments (POT1 and POT2) for optimal performance, which is a function ...

The circuit of Figure 1 generates sinusoids down to very low frequencies with distortion in the region of 3% or less, yet has no feedback or gain-stabilizing components because none are needed.