This circuit has a frequency range of 30 Hz to 100 kHz with an output signal of 1 Vrms. We found it in 70s American documentation. The integrated circuits are CA3140.
The circuit in the figure can be used to trigger a triac or even a comparator in a project that...
Found in documentation from the 1970s, this circuit can be implemented with other operational...
In the figure we have a circuit of a very simple audio mixer, which makes use of an operational 741.The...