Found in 1965 Delco Radio documentation, this circuit uses transistors from that era. Modern equivalents can be used. The characteristics of the inductor were not given.
The transistor of this circuit found in an old American documentation can be the BC548 for T1 and...
This circuit was found in Motorola documentation from 1969. The transistors are from that time. The...
The crystal in this circuit can have frequencies from 100kHz to 8MHz. Capacitor C2 adjusts the...