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SHOWCASE 14

1920s: The Times of Crystal Sets and… Integrated Circuits

Headphones for Crystal Sets

1 - Zephyr - Headphones made by BRUNET, Paris. Impedance 2,000 Ohm

2 - Headphones made by Nora, Germany. Impedance 2,000 Ohm

3 - OMEGA - Headphones of unknown manufacturer. Impedance 2,000 Ohm

4 - Headphones of unknown manufacturer (there is company logo). Impedance 2,000 Ohm.

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