In the entrance hall of the National Technical Museum, unique technical artifacts are on display — the radio stations "Libuše," "Božena," and the Hallicrafters Skyrider Defiant receiver.

The exhibition also provides a detailed look at the fates of the resistance groups Silver A and Silver B, which played a crucial role in the resistance against the Nazi occupation.

The "Libuše" radio station played a key role in the Silver A group, which maintained communication with the exile government in London during the Protectorate of Bohemia and Moravia. Through "Libuše," critical messages were transmitted, including plans for the assassination of Reinhard Heydrich, a high-ranking Nazi official and architect of the Holocaust. This assassination provoked brutal reprisals, leading to the destruction of the villages of Lidice and Ležáky. These events highlighted the extreme lengths the Nazi regime was willing to go in retaliation and symbolized the bravery of the paratroopers who lost their lives in the operation.

The display also recalls the second key radio station, "Božena," which was also designed as a crucial device for the Czechoslovak resistance. Unfortunately, its fate was marked by a technical failure. During the paratroopers' jump, it was damaged, rendering it unusable. This loss had serious consequences for the resistance groups that relied on this radio station.

The Hallicrafters Skyrider Defiant receiver, an advanced technical instrument of its time, was an important tool for intercepting foreign broadcasts, providing valuable information from the exile government to resistance groups operating within the Protectorate.

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