If you are looking for a constant frequency generator that easy and inexpensive. Here are the transistor crystal oscillator circuit ideas. They may help you works finish. Since 30 years…
This Simple Crystal oscillator Circuit using 74LS04 that provided square wave of 1MHz to 10MHz, Use inverter gate IC and control frequencies with crystal [...]
If a friend gets into trouble about the noise. Try out this circuit before
The band rejection filter circuit is not wide filter that can denial the frequency up to 60dB by we used the TL071 single chip op-amp it is very low distortion…
This Sawtooth wave generator circuit include of the frequency oscillator is controlled by current. Which can generate the sweep frequency in wide range. [...]
SEE! Simple Sine wave oscillator low frequency. Without thermistor and Incandescent lamp so very linear in transistor and zener diode circuit.
This circuit make pulse signal in continuity. We call it that Astable Multi Vibrator circuit. The 555 timer-IC1 is working with VR1, R1, R2, and CT. The value of CT…
