Operating in the range of 3 to 100 MHz, this circuit was found in documentation from the 70s. Observe the coil. The field effect transistor is a component of the era.
This filter has a cut-off frequency of 1 kHz by letting pass those that are above this value. The...
The presented circuit measures currents and voltages with precision that depends on the tolerance of...
This Texas Instruments circuit uses a phototransistor to fire a TTL trigger port. Other...