EMG Junior Expert gramophone, c 1932.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

EMG Junior Expert gramophone, c 1932.

© Science Museum / Science & Society Picture Library

Description

E M Ginn started work on a scientifically-designed gramophone in 1924, founding EMG Handmade Gramophones in 1930. By using research done in the USA and carefully matching a hand-built sound box to a very large external horn, he was able to reproduce frequencies as low as 100Hz - a respectable bas response even for modern equipment. His machines also produced clean, high treble without spurious resonances. The Junior Expert differed from the Senior mainly in having a smaller horn - only 60cm in diameter.
 

Image Ref.

10263067
 

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