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  • Calculating An Ohmmeter (ART575E)

  • Degrees Celsius, Degrees Fahrenheit, Degrees Kelvin and Degrees Reamur (MA197E)

  • How to Calculate, Modify or Adjust Resonant Circuits (ART563E)

  • Inches to Millimeters (MA195E)

  • Instantaneous Values of Sine Waves (MA194E)

  • Mechanics of liquids (MEC215)

  • Millimeters to Inches (MA196E)

  • Sound Pressure (MA200E)

  • Sound Wavelength (MA198E)

  • Using the Hydraulic Pressure (MEC216E)

  

Latest

  • Stepped Timer (ART726E)
  • Electronic Circuit Breaker (ART727E)
  • Electronic Cockroach Killer (ART649E)
  • Two Projects with Ceramic Transducers (ART647E)

Circuit Bench

  • Hartley Oscillator (CB4571E)

      I found this circuit in a Lujy 1962 English magazine. The circuit is still viable by simply using a...

  • Humidity Relay (CB18619E)

      This moisture-activated relay was obtained from an American documentation from the 1980s,...

  • 40 dB Gain Amplifier LM382 (CB4763E)

          This amplifier was found in a Radio Electronics of the 90s. The circuit uses unusual operational...

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