# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/valdemar-poulsen
# Generated: 2026-08-15T11:00:45.017Z

schema: https://schema.org/Person
url: "https://fame.am/person/valdemar-poulsen"
name: "Valdemar Poulsen"
slug: "valdemar-poulsen"
description: "Valdemar Poulsen was a Danish engineer and inventor who developed a magnetic wire recorder called the telegraphone in 1898. He also made significant contributions to early radio technology, including the first continuous wave radio transmitter, the Poulsen arc, which was used for a majority of the earliest audio radio transmissions, before being supplanted by the development of vacuum-tube transmitters."
tagline: "Danish engineer (1869-1942)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Ingeni%C3%B8r_Valdemar_Poulsen_paa_sin_Station_for_traadl%C3%B8s_Telegrafi_08.jpg?width=1200"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1869-11-23"
deathDate: "1942-07-23"
livingStatus: "DECEASED"
scores:
  popularity:           50.52
  momentum:             0
  historical:           20.36206133333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
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    title: "Валдемар Поулсен"
    type:  "WIKIPEDIA"
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    title: "فالديمار بولسين"
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    title: "فالديمار بولسين"
    type:  "WIKIPEDIA"
  - url: "https://be_x_old.wikipedia.org/wiki/%D0%92%D0%B0%D0%BB%D1%8C%D0%B4%D1%8D%D0%BC%D0%B0%D1%80_%D0%9F%D0%BE%D1%9E%D0%BB%D1%8C%D1%81%D1%8D%D0%BD"
    title: "Вальдэмар Поўльсэн"
    type:  "WIKIPEDIA"
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    title: "Вальдэмар Поўльсен"
    type:  "WIKIPEDIA"
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    title: "ভালদেমার পাউলসেন"
    type:  "WIKIPEDIA"
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    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
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    title: "Valdemar Poulsen"
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    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
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    title: "ولدیمار پولسین"
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    title: "Valdemar Poulsen"
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    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%83%B4%E3%82%A9%E3%83%AB%E3%83%87%E3%83%9E%E3%83%BC%E3%83%AB%E3%83%BB%E3%83%9D%E3%83%BC%E3%83%AB%E3%82%BB%E3%83%B3"
    title: "ヴォルデマール・ポールセン"
    type:  "WIKIPEDIA"
  - url: "https://mg.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://nn.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://no.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Valdemar_Poulsen"
    title: "Valdemar Poulsen"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%9F%D0%BE%D1%83%D0%BB%D1%8C%D1%81%D0%B5%D0%BD%2C_%D0%92%D0%B0%D0%BB%D1%8C%D0%B4%D0%B5%D0%BC%D0%B0%D1%80"
    title: "Поульсен, Вальдемар"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q442681"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump