DIY HV Variable capacitor

This simple circuit produces a loud trilling noise, if no valid transmitter signal is received....

Sounds are picked up by MIC1 and fed to the input of the first op amp. The signal is then fed to...

The multiplication operation that is required to generate a signal of a frequency equal to the...

This is a circuit about PLL system that can be used to implement an FM demodulator. Since the VCO...

A robot named "Wet Dream" was constructed whose purpose was to roam around, avoid collisions,...

The purpose of this circuit was to create a ring in which LEDs or Lamps illuminate sequentially....

The Spartan-6 board has 2-channel 12 Bit SPI ADC, indicated as in Figure. As you know in...

This circuit generates the sound of the electronic ringer found in modern telephones, supplanting...

An electromagnetic generator without moving parts includes a permanent magnet and a magnetic core...