2N4983 and 2N4986 (IP055E)

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

Dial Tone Generator (CB5984E)
This circuit is from an old documentation making use of a 3,579,645 MHz analog color television...
Pulse Generator 555 (CB17244E)
This circuit generates short pulses. The transistor can be a 2N2222 or BC548 and the frequency is given by...
FET Hartley 2 (CB22392E)
The difference between this oscillator in relation to the previous one is in the use of source...