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QRR-25
Switch receiver - this page is a stub

QRR-25 was a switch receiver, intended for remote controlling covert listening devices (bugs), developed around 1969 by the Dutch Radar Laboratory (NRP) for the US Central Intelligence Agency (CIA), as part of a long-term development contract under the name Easy Chair (EC).

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The device is just 50 mm long and has the usual diameter of 26 mm. Including the cabling and connectors, it weights approx. 94 grams.   
SRR-25 switch receiver

QRR-25-UWP
An enhanced version of the QRR-25, with built-in UWP mains power supply unit (PSU) was known as QRR-25-UWP. De device has a length of 115 mm and weights 150 grams, including the cabling and connectors.   
QRR-25 with intgrated UWP mains power supply unit

QRR-25 switch receiver
QRR-25 switch receiver
QRR-25 switch receiver
SRR-25 switch receiver
QRR-25 compared to the size of a hand
QRR-25 with intgrated UWP mains power supply unit
QRR-25-UWP and QRR-25
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QRR-25 switch receiver
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QRR-25 switch receiver
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QRR-25 switch receiver
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SRR-25 switch receiver
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QRR-25 compared to the size of a hand
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QRR-25 with intgrated UWP mains power supply unit
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QRR-25-UWP and QRR-25

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© Crypto Museum. Created: Wednesday 19 April 2017. Last changed: Tuesday, 13 June 2017 - 06:03 CET.
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