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Digital Analogue converter

infrared cheek movement sensor for communication

Analogue signal processor for infrared cheek sensor (serialized)

infrared cheek movement sensor for communication

infrared cheek movement sensor for communication

USB hub for desktop computer

electronic parts for Hawking's wheelchair-mounted communications system

DECtalk synthesizer system

USB hub used for Wheelchair communication systems

digital signal processor for infrared cheek sensor

infrared cheek movement sensor for communication

Analogue signal processor for infrared cheek sensor (prototype)

Signal processor for infrared cheek movement sensor

infrared cheek movement sensor for communication

infrared cheek movement sensor for communication

Signal processor for infrared cheek sensor

Wheelchair programmer

Electronics to drive magnetometers (S24A1 and S24A2)

Analogue signal processor for infrared cheek sensor (serialized)

Record, replay and transfer electronics, valve circuitry, including level metering for 3 track operation in recording and replay, monitoring and switching facilities, master bias oscillator, audition amplifier and stabilised power supply units, purpose-built by Streetly Electronics Ltd., mounted in rack 84" (high) x 19" (wide) x 25" (deep), 1962.

Record, replay and transfer electronics for 3 track

1962