This 80's circuit can be implemented with modern equivalent FETs with lower on resistance. The attenuation is 80 dB at 100MHz.
Using this circuit the lamps glow in sequence in a speed given by the capacitors. The SCRs present a...
This noise generator uses the thermal noise of a common diode junction. The circuit is from an...
This circuit uses na Unijunction Transistor (UJT) to produce a modulation tone for several...