HP Model 200A audio oscillator
GPTKB entity
Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:audio_oscillator
|
| gptkbp:category |
gptkb:electronic_test_equipment
|
| gptkbp:frequency |
20 Hz to 20 kHz
|
| gptkbp:introducedIn |
1939
|
| gptkbp:inventedBy |
gptkb:Bill_Hewlett
|
| gptkbp:locationOfFirstProduction |
gptkb:Palo_Alto,_California
|
| gptkbp:manufacturer |
gptkb:Hewlett-Packard
|
| gptkbp:marketedAs |
gptkb:HP_200A
|
| gptkbp:notableFeature |
light bulb for amplitude stabilization
|
| gptkbp:notableFor |
first product of Hewlett-Packard
|
| gptkbp:powerSource |
AC mains
|
| gptkbp:successor |
gptkb:HP_200B_audio_oscillator
|
| gptkbp:technology |
gptkb:Wien_bridge_oscillator
|
| gptkbp:usedBy |
gptkb:Walt_Disney_Studios
|
| gptkbp:usedFor |
audio testing
|
| gptkbp:bfsParent |
gptkb:Bill_Hewlett
gptkb:William_Hewlett |
| gptkbp:bfsLayer |
5
|
| http://www.w3.org/2000/01/rdf-schema#label |
HP Model 200A audio oscillator
|