This circuit was found in a British documentation from 1969. It can be implemented with modern transistors. The pass band is 6 MHz.
This circuit was found in a General Electric documentation from 1970. It is used in an optical...
This circuit can generate signals from 100 kHz to 50 MHz depending on the crystal and the...
We found this circuit in a 1968 Electronics World. The transistors are from the era and...