1. |
 |
The Angel trademark. This is a water transfer applied to the cabinet work of the gramophone and, in a play on words, represents the Recording Angel. The image was created in the 1890s by Theodore Birnbaum. The cherub depicted is engraving, not the deeds of mankind as the Biblical recording angel would, but the grooves of a gramophone record. |
|
|
|
|
2. |
 |
The transducer or pickup head. This is simply a membrane tightly held in the circular housing. This membrane is connected by a thread directly to the stylus. The vibrations of the stylus in the groove are transmitted to the membrane, which moves in sympathy with the stylus and causes the air to vibrate. |
|
3. |
 |
The external motor housing. A clockwork motor is wound using the handle visible in the picture. When fully wound the machine will play at 78 rpm for three or four minutes. The adjacent small knob is for fine speed adjustment by controlling an internal regulator. |
|
4. |
 |
The brake mechanism of the Trademark gramophone. The lever moves left to right and pressure is applied to the edge of the turntable by the felt pad. |
|
5. |
 |
The point of attachment of the horn to the transducer. The air vibrations caused by the movement of the membrane in the pickup head are fed through the leather corner-piece to the horn and then amplified acoustically by the horn and thus the sound of the record is heard. |
|
| |
 |
The manufacturer's trademark. The Gramophone Company was established in London in 1898, and the name His Master's Voice was used from 1908 along with the famous painting of the dog Nipper listening to a gramophone. |
|
