This high input impedance tone control circuit was found in American documentation from the 1980s. Equivalent operational amplifiers and FTEs can be used.
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....