HP 200A
E812207
The HP 200A is Hewlett-Packard’s first commercially successful audio oscillator, famous for launching the company in the late 1930s and being used by Walt Disney Studios for the film "Fantasia."
All labels observed (4)
| Label | Occurrences |
|---|---|
| HP 200 series audio oscillators | 1 |
| HP 200A canonical | 1 |
| HP 200B | 1 |
| HP Model 200A | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9632278 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: HP 200A Context triple: [HP 200A audio oscillator, alsoKnownAs, HP 200A]
-
A.
HP 3000
The HP 3000 is a minicomputer line from Hewlett-Packard known for its MPE operating system and long-standing use in business and commercial data processing.
-
B.
HP 9000 Series 200
The HP 9000 Series 200 is a line of early 1980s Hewlett-Packard technical workstations designed for engineering and scientific computing, notable for running HP-UX and other development tools.
-
C.
HP 9000 series 700
The HP 9000 Series 700 was a line of high-performance PA-RISC-based technical workstations from Hewlett-Packard, widely used in engineering and scientific computing during the 1990s.
-
D.
HP 9000
HP 9000 is a family of Hewlett-Packard workstation and server computers based on PA-RISC and later Intel architectures, widely used in technical, engineering, and enterprise environments.
-
E.
HP 9000 series 400
The HP 9000 series 400 was a line of high-performance technical workstations from Hewlett-Packard, widely used in engineering and scientific computing during the late 1980s and early 1990s.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: HP 200A Target entity description: The HP 200A is Hewlett-Packard’s first commercially successful audio oscillator, famous for launching the company in the late 1930s and being used by Walt Disney Studios for the film "Fantasia."
-
A.
HP 3000
The HP 3000 is a minicomputer line from Hewlett-Packard known for its MPE operating system and long-standing use in business and commercial data processing.
-
B.
HP 9000 Series 200
The HP 9000 Series 200 is a line of early 1980s Hewlett-Packard technical workstations designed for engineering and scientific computing, notable for running HP-UX and other development tools.
-
C.
HP 9000 series 700
The HP 9000 Series 700 was a line of high-performance PA-RISC-based technical workstations from Hewlett-Packard, widely used in engineering and scientific computing during the 1990s.
-
D.
HP 9000
HP 9000 is a family of Hewlett-Packard workstation and server computers based on PA-RISC and later Intel architectures, widely used in technical, engineering, and enterprise environments.
-
E.
HP 9000 series 400
The HP 9000 series 400 was a line of high-performance technical workstations from Hewlett-Packard, widely used in engineering and scientific computing during the late 1980s and early 1990s.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
audio oscillator
ⓘ
electronic test equipment ⓘ |
| alsoKnownAs |
HP Model 200A
ⓘ
linked to:
HP 200A
|
| application | audio-frequency signal generation ⓘ |
| associatedWith | founding of Hewlett-Packard in a Palo Alto garage ⓘ |
| category |
audio engineering equipment
ⓘ
test and measurement equipment ⓘ |
| commercialStatus | mass-produced laboratory instrument ⓘ |
| controlFeature |
continuously variable frequency control
ⓘ
output level adjustment ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designedBy |
David Packard
ⓘ
William R. Hewlett ⓘ
linked to:
Bill Hewlett
|
| era | pre-World War II electronics ⓘ |
| frequencyRange | 20 Hz to 20 kHz ⓘ |
| hasComponentType |
capacitors
ⓘ
power transformer ⓘ resistors ⓘ vacuum tubes ⓘ |
| hasEnclosureType | bench-top instrument case ⓘ |
| hasOutputType | sine wave ⓘ |
| historicalSignificance |
early landmark in electronic test instrumentation
ⓘ
key product in the founding era of Hewlett-Packard ⓘ |
| inception | 1939 ⓘ |
| locationOfManufacture | Palo Alto, California ⓘ |
| manufacturer | Hewlett-Packard ⓘ |
| marketedAs | precision audio oscillator ⓘ |
| notableFor |
being Hewlett-Packard’s first commercially successful product
ⓘ
helping launch Hewlett-Packard as a company ⓘ high frequency stability ⓘ low distortion audio output ⓘ |
| partOfSeries |
HP 200 series audio oscillators
ⓘ
linked to:
HP 200A
|
| powerSupply | vacuum tube based circuitry ⓘ |
| soldTo |
broadcast stations
ⓘ
industrial laboratories ⓘ motion picture studios ⓘ |
| stabilizationMethod | automatic gain control via lamp resistance ⓘ |
| successor |
HP 200B
ⓘ
linked to:
HP 200A
|
| technologyUsed | Wien bridge oscillator ⓘ |
| usedBy | Walt Disney Studios ⓘ |
| usedFor |
laboratory measurements
ⓘ
testing audio equipment ⓘ |
| usedIn |
film sound system testing
ⓘ
loudspeaker testing ⓘ microphone testing ⓘ |
| usedInWork | Fantasia ⓘ |
| usesComponent | incandescent lamp for amplitude stabilization ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: HP 200A Description of subject: The HP 200A is Hewlett-Packard’s first commercially successful audio oscillator, famous for launching the company in the late 1930s and being used by Walt Disney Studios for the film "Fantasia."
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: HP 200A
linked to: HP 200A