This JFET amplifier stage was found in the Encyclopedia of Electronic Circuits Volume 5 from 1995. Any JFET can be used and the bias controlled externally.
This oscillator takes advantage of the inverse breakdown voltage between collector and emitter. The...
This circuit of old American documentation (1965) can be applied to any transistor. | Clique na...
Long timings, reaching 1 hour if a 1,500 uF capacitor is used, can be achieved with this circuit. The...