This article is rated C-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Military history: Fortifications / Technology / Weaponry / British / European / North America / United States / World War I / World War II This article is within the scope of the Military history WikiProject. If you would like to participate, please visit the project page, where you can join the project and see a list of open tasks. To use this banner, please see the full instructions.Military historyWikipedia:WikiProject Military historyTemplate:WikiProject Military historymilitary history articles This article has been checked against the following criteria for B-class status: Referencing and citation: criterion not met Coverage and accuracy: criterion met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met Associated task forces: /  Fortifications task force Military science, technology, and theory task force Weaponry task force British military history task force European military history task force North American military history task force United States military history task force World War I task force World War II task force Telecommunications Start‑class Low‑importance This article is within the scope of WikiProject Telecommunications, a collaborative effort to improve the coverage of Telecommunications on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.TelecommunicationsWikipedia:WikiProject TelecommunicationsTemplate:WikiProject TelecommunicationsTelecommunications articles Start This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible. Low This article has been rated as Low-importance on the project's importance scale.

I'm considering merging this article with Depression position finder, a similar American device that was developed circa 10 years after this one. I'm leaning towards naming the resulting article after the British device, with a redirect of course. Comments are welcome. RobDuch ( talk) 04:52, 14 May 2019 (UTC) reply

• Support Although primacy should go with the first device, not just the one with the currently better article. Andy Dingley ( talk) 09:59, 14 May 2019 (UTC) reply

Done. RobDuch ( talk) 05:38, 19 May 2019 (UTC) reply