The Redifon SPT9010 is a quintessential example of robust British engineering from the latter part of the 20th century. Manufactured by the SPT Division of Redifon in England, this sophisticated 24-channel system was designed for critical signal processing, routing, and analysis tasks. While specific original applications may have included telecommunications, audio broadcast mixing, or multi-channel data acquisition, today it stands as a highly sought-after piece for collectors, museums, and specialists in restoring vintage electronic systems.
This unit, marked as “#2”, represents a specific series or production batch, adding to its provenance for serious collectors.
Key Features & Technical Specifications
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Manufacturer: Redifon Ltd. – SPT Division
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Model: SPT9010
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Origin: England, UK
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Channel Count: 24 Independent Channels
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Condition: Vintage / As-Is – This unit is being sold as a collector’s item or for parts. Full functionality is not guaranteed unless stated otherwise.
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Build Quality: Renowned Redifon construction with a heavy-duty steel chassis, high-quality switches, and military-specification connectors.
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Era: Circa 1970s-1980s, representing the solid-state era of electronics.
Potential Original Applications (Historical Context)
The SPT9010’s 24-channel architecture suggests it was used in demanding professional environments. Its likely functions included:
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Telecommunications Testing: As a patching and monitoring bay for multi-line telephone systems.
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Audio Broadcasting: A routing switcher or mixer module in a radio or early television broadcast studio.
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Data Acquisition: A front-end signal conditioner for multi-sensor industrial or scientific monitoring.
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Avionics or Military Systems: Redifon was a major supplier to these sectors, and this unit could have been part of a larger simulator or test bench.
