Abstract: Circuit arrangements are presented which considerably reduce the effect of changes in supply voltage and temperature on the frequency of a transistor oscillator. The oscillators described ...

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually ...

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually driven by a small electret microphone. It’s also relatively ...

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

Abstract: Two commonly used basic transistor blocking oscillator circuits are considered: 1) a common-emitter with collector-to-base transformer coupling, and 2) a common-base circuit with ...

The oscillator core is roughly bases on the Jupiter 8 with a simpler approach for the current sink. It either needs a pair of matched 2N3904 transistors or one BC847BS dual transistor. I have very ...