Found on an 80's Elektor, this circuit uses common components, being the diode a general purpose germanium. The coils select the frequency range of the indicator that reaches 60 MHz.
This circuit can be used in physics experiments, in ionization and in several other applications. The...
Through digital control, this circuit activates the input filters that have the frequencies...
This VCO or Voltage Controlled Oscillator uses common components. The circuit generates signals that...