HP Model 200A audio oscillator
GPTKB entity
Statements (19)
Predicate | Object |
---|---|
gptkbp:instanceOf |
audio oscillator
|
gptkbp:category |
electronic test equipment
|
gptkbp:frequency |
20 Hz to 20 kHz
|
https://www.w3.org/2000/01/rdf-schema#label |
HP Model 200A audio oscillator
|
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
|