The Compagnie Générale de Télégraphie sans Fil (General Company for Wireless Telegraphy) was created in 1918 and became known as CSF later on. They were heavily implicated in the development of communications and had their paws in the cable business, components, tubes, telephones, radios, military communications, broadcasting and whatnot, and they were also busy outside France, building emitters in Serbia, Poland (iirc) and such.

Something with nationalization, mergers, spin-offs, yadayada complicated financial organization, I mean just look at the companies listed!

Is the 1950s CSF the same as the 1920s one? Not really, but anyway have a March 1957 ad alongside the Nov. 1925 one ❤️

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

La Radio-Industrie was founded in 1922. They played an important part in the development of TV in France from 1935 on.

#poster_thursday

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

Rope was the first general-purpose technology. We let the evidence rot

https://www.martincid.com/business/rope-first-general-purpose-technology-2/

#FiberTechnology #HistoryOfTechnology #GeneralPurposeTechnology

These resistors were manufactured in 1964, 61 years later they have driften some - as carbon composition types are prone to do.

Those were 43R when they put them into the box on 2 Nov. 1964, today they measure > 56 Ohms. A "little" bit beyond the 5% tolerance 👀

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

"Keep Your H.F. in its Place" 😈 (in 1927)

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

Arphone, one of the many brands that ended up in the belly of CGTVE (iirc).

#poster_thursday

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

Blaupunkt exhibit at the IFA in Berlin, September 1927

<- https://oldbytes.space/@daily_tsf/116634628895583049

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology

📯#DigitalHistoryOFK: Zachary Loeb (Purdue University) explores “What’s the worst that could have happened? Y2K and the Risks of the Information Age.” This talk asks how Y2K was treated as a crisis aiming to help us better understand and navigate technological risks today.

📅Wed ,27 May 2026, 4–6 pm (CET), online
ℹ️https://dhistory.hypotheses.org/13480

#4memory #DigitalHistory #HistoryOfTechnology #CriticalInfrastructure #STS
@historikerinnen @histodons @digitalhumanities

"Electricity"

London, 1850

#TSF #RadioHistory #VintageRadio #VintageAdvertising #HistoryOfTechnology