This flip-flop circuit with general purpose transistors was found in American documentation from the 1980s. The maximum operating speed depends on the transistors. Diodes are commonly used.
The purpose of this circuit is to produce a 50 uV harmonic at 1296 MHz from a 0.15 to 1 V input of...
This simple amplifier was found in a Radio Electronics magazine from July 1970. The transistors are...
This triac circuit was found in the July 1995 Electronics Now magazine. The triac is based on the...