This conventional filter circuit is from American documentation from the 1990s. The operational amplifier admits an equivalent and the power supply must be symmetrical.
Found in Motorola documentation from the 90's, this circuit has a high input impedance. The power...
This 5 V x 8 A power supply was found in Siliconix documentation. The unit operates with a 24 to...
This is a well-known oscillator configuration with complementary transistors. In this case, the...