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== Example Queries ==
== Example Queries ==
=== All time base correctors ===
Which TBCs do we have documented? Handy for anyone shopping for a TBC to clean up their VHS captures.
{{#ask:
[[Has device type::Time base corrector]]
[[Category:AV devices]]
|?Has image#100px;x100px=Photo
|?Has brand=Brand
|?Has model code=Model
|?Has year released#=Year
|format=broadtable
|headers=plain
|sort=Has brand
}}
=== Frame synchronizers ===
Frame synchronizers go a step beyond TBCs — they regenerate the entire frame, making them ideal for mixed-format workflows and broadcast-quality output.
{{#ask:
[[Category:AV devices]]
[[Has device type::Frame synchronizer]]
|?Has image#100px;x100px=Photo
|?Has brand=Brand
|?Has model code=Model
|?Has year released#=Year
|format=broadtable
|headers=plain
|sort=Has brand
}}


=== Frame synchronizers with DUB input ===
=== Frame synchronizers with DUB input ===


Which devices have frame synchronization ''and'' a Hirose 7-pin DUB connector carrying Y/C color-under signal? These are the units that can frame-sync directly from a U-Matic or other DUB-output VTR without needing a separate adapter or transcoder.
Which devices have frame synchronization capability ''and'' a [[Hirose 7-pin DUB]] connector carrying [[Y/C DUB color-under|Y/C color-under]] signal? These are the units that can frame-sync directly from a U-Matic or other DUB-output VTR without needing a separate adapter or transcoder.


{{#ask:
{{#ask:
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}}
}}


=== Devices with S-Video I/O ===
Which devices support S-Video? Useful for finding equipment that pairs well with S-VHS and Hi8 decks.
{{#ask:
[[Category:AV devices]]
[[Has video signal format::S-Video (Y/C)]]
|?Has image#100px;x100px=Photo
|?Has brand=Brand
|?Has model code=Model
|?Has device type=Type
|format=broadtable
|headers=plain
|sort=Has brand
}}


[[Category:Special pages]]
[[Category:Special pages]]

Latest revision as of 21:21, 19 February 2026

This page showcases advanced queries powered by Semantic MediaWiki (SMW). Every AV device in the wiki stores its specs — brand, device type, format family, inputs, outputs, and more — as structured semantic properties. That means we can ask the wiki surprisingly specific questions and get live, always-up-to-date answers.

These queries run against real data in the wiki, so as new devices are added and existing ones are updated, the results here update automatically.

Want to learn more about writing your own queries? See the SMW inline queries documentation.

Running your own queries

You can play around with SMW queries using the built-in query interface at Special:Ask, or try copying the below example queries to your sandbox.

Example Queries

Frame synchronizers with DUB input

Which devices have frame synchronization capability and a Hirose 7-pin DUB connector carrying Y/C color-under signal? These are the units that can frame-sync directly from a U-Matic or other DUB-output VTR without needing a separate adapter or transcoder.

 PhotoBrandModelTypeYear
Digital Processing Systems DPS-295Digital Processing Systems DPS-295 front.webpDigital Processing SystemsDPS-295Time base corrector1988
JVC KM-F250JVC KM-F250U front.webpJVCKM-F250Frame synchronizer
Prime Image Excel 6.5Prime Image Excel 6.5 front.jpgPrime ImageExcel 6.5Time base corrector1991

Devices by brand

Who made the most AV devices in our database? A quick breakdown by manufacturer.

Oldest documented devices

What are the earliest AV devices we've got on record? A trip through broadcast and prosumer history.

 PhotoBrandModelTypeYear
Sony LV-1901SonyLV-1901VCR1975
Sony SL-6200SonySL-6200VCR1975
Sony SL-7200SonySL-7200VCR1975
Sony SLO-260SonySLO-260VCR1976
Sony SLP-100SonySLP-100VCR1976
JVC HR-3300JVCHR-3300VCR1976
Sony SL-7200ASonySL-7200AVCR1976
RCA VBT-200RCAVBT-200VCR1977
Sony SL-8200SonySL-8200VCR1977
Zenith JR-9000WZenithJR-9000WVCR1977
... further results
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