Octode

{
  "id": "MLC-T-IND-003967",
  "term": "Octode",
  "field": "Industrial and trades",
  "definition": "A vacuum tube or thermionic valve with eight electrodes: an anode, a cathode, and six grids. The multiple grids allow the tube to perform complex functions, most commonly frequency mixing (heterodyning) in superheterodyne radio receivers. The octode combines the functions of a local oscillator and a mixer in a single envelope, with specific grids used for oscillation feedback, signal input, and screening.",
  "subject": "Energy and utilities",
  "translations": {
    "de": "Oktode",
    "es": "octodo",
    "fr": "octode"
  },
  "url": "https://mlchart.com/terminology/industrial/octode/"
}