RF or even switching transistors like the 2N2222 can be used in this circuit. The capacitors are ceramic and the frequency is determined by the crystal.
Suggested by Motorola in 1968 documentation, this circuit has an efficiency of 70%. Power...
Toshiba LDO Regulators Toshiba has a wide variety of low voltage drop (LDO) linear regulators...
Found in a 90s Popular Electronics, this Hartley oscillator uses an output transformer of the type...