Found in a Popular Electronics from the 90s, this circuit can act as a transmitter for an audio link. The output transistor admits a higher power equivalent, depending on the LED.
This phase shift oscillator generates sinusoidal signals in the audio range. Frequency depends on...
We obtained this circuit in an English publication in 1983. Equivalent operational amplifiers can...
The figure shows how to implement an amplifier with gain 10 using the operational amplifier LM41....