This circuit was obtained in a 1960 documentation of General Electric. It is applied in the control of registers of the time.
We found this configuration in a Radio Shack documentation from 1977. Here we have the way to...
In this oscillator a phase shift network formed by C1, C2, C3 and R1, R3, R4 determine the fase...
This filter was found in Texas Instruments documentation from the 1980s. The circuit uses a common...