We found this circuit in a 1967 American documentation. It is a transmitter for animal research, monitoring intestinal pressure. The operating frequency is 22 kHz.
This circuit was obtained from an American documentation from 1969. The operational amplifier and...
This circuit has very high input impedance and a differential input. The gain is 1,000 and the...
This high-power circuit excites capacitive loads and can be powered by voltages from 14 to 32 V....