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Confetti704 Non Inverting Summer

The non inverting summer board for the Analog Computer Confetti. A good description of the basic functionality of the summer one can find here: The Summing Amplifier.
The board has a jumper marked as V3 for using the sum of two (no jumper) or three inputs (set jumper) different inputs..


The screenshot of an oscilloscope: summing to different inputs together, a square wave plus a sine wave.

Paper PCB


confetti704_non_inverting_summer_02.zip

Parts

  • Resistors:
  • 4x 1 kOhm
  • 2x 330 kOhm
  • 1x 10 MOhm
  • Capacitors:
  • 1x 100pF - 1000µF
  • Diodes:
  • 1x LED
  • Semiconductors
  • 1x TL074 OpAmp
  • Mechanical:
  • 1x IC socket, 14pins
  • 1x 3 pin strip
  • 1x jumpers
  • 3x 2 pin header, female
  • 2x 4 pin header, female
  • 1x 2 pin socket header, female
  • 2x pin header, female 90° 1×3, 1×2
  • 2x pin header, male 90° 1×3, 1×2
  • Potentiometers:
  • 1x 100 kOhm