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Tipo da 500 W 500 W Type | |||
VAAM - Vannes Ambrosi, Milano - Italia ~1940. © IK3HIA, 2024. |
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VAAM - Vannes Ambrosi, Milan - Italy ~1940. Vannes Ambrosi was a company that began its activity in the 1930s in Bologna and then moved to Milan. Vaam marketed electronic components, crystal radios, coils, "cat whisker" crystal detectors, telephone and radio headphones, small household appliances, intercoms and other telephone material with headquarters in Milan. The earcups of the headphones 500 W Type were made of black Bakelite while the headband was adjustable and was made of steel. The two windings of each earcup had an impedance of 125 Ohm each and since they were all connected in series the total impedance was 500 W. VAAM marketed the same model of headphones with an impedance of 1000 Ohm. © IK3HIA, 2024. |
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