This circuit generates a sinusoidal signal with only -80 dB THD. The circuit was found in a 90's EDN. The frequency is 25 kHz and the components used are from that time.
Found in a 1965 Motorola documentation, this circuit uses a neon lamp as a trigger element. The SCR...
This trigger uses two switching transistors that can still be found with some ease. The circuit is from...
This limiting circuit or Clipper was found in a 1977 documentation. The circuit uses only passive...