Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
audio recordings
|
| gptkbp:alsoKnownAs |
carbon microphone
|
| gptkbp:category |
gptkb:audio_equipment
19th-century inventions |
| gptkbp:component |
diaphragm
carbon granules |
| https://www.w3.org/2000/01/rdf-schema#label |
Hunnings microphone
|
| gptkbp:introducedIn |
1878
|
| gptkbp:inventedBy |
gptkb:David_Edward_Hughes
|
| gptkbp:notableFor |
first practical microphone for telephony
improved sound quality over previous designs |
| gptkbp:principle |
variable resistance
|
| gptkbp:replacedBy |
condenser microphone
dynamic microphone |
| gptkbp:usedFor |
audio recordings
telephony sound amplification |
| gptkbp:bfsParent |
gptkb:Thomas_Hunnings
|
| gptkbp:bfsLayer |
8
|