2N4983 and 2N4986 (IP055E)

SUS with trigger voltage of 8 V. This component is used in TRIAC triggering and monostable circuits.

Complementary Transistor Oscillator (CB495)
Audio signals can be produced by this circuit. Frequency range is determined by C1 and adjusted by...
10 to 84 MHz Colpitts oscillator (CB4052E)
This Colpitts crystal oscillator was found in an American publication for amateurs in the 1980s....
Negative Resistance Circuit (CB926E)
This configuration presents a negative resistance caracteristic such as the one found in...