Found in an American 1980s documentation, this circuit compares signals from two TTL sources, providing an output that depends on the frequency difference. The circuit can be used as a shield.
The circuit shown in the figure can generate signals up to 1.6 GHz. Coil L1 and capacitor C2 are...
We found this preamplifier for recording heads in a 1980s documentation. The circuit can be used...
We find this circuit in a 555 application manual. The circuit generates triangular signals that...