ZO-47

The ZO-47 is a compact, modular, valve-based clandestine radio set developed by Philips in 1947. It was custom-built for O&I (Operatiën en Inlichtingen), the post-WW2 Dutch Stay-behind organisation. Standing for Zendontvanger 1947 (Transmitter/Receiver 1947), it represents one of the very few clandestine radio stations designed and produced by Philips.

By the mid-1950s, the Dutch stay-behind network began transitioning to standardized American, British, and German espionage kit such as the RS-1 and RS-6.

References

  1. ↑ Herman Schoemaker, Een geheime organisatie in beeld De Nederlandse stay-behind-organisatie, geheim, onafhankelijk en zelfstandig? The Dutch stay-behind organisation, secret, independent and autonomous? (Dutch). Thesis under supervision of Prof. Dr. B.G.J. de Graaff, Utrecht University. 7 June 2013.
  2. ↑ Wim Kramer, Mysterie in Utrecht RAM Magazine 136, Oktober 1992. pp. 17-19. 1