Ken Shirriff on Twitter: "A 1965 IBM terminal used sonic delay lines for memory. It stored pixels as sound pulses that traveled along a long nickel wire, but vibrations from heavy footsteps
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Figure 5 from Towards a CMOS compatible ultrasonic delay line memory | Semantic Scholar
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Replaceable Delay Line Transducers
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Analog delay line - Wikipedia
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Analog delay line - Wikiwand
Analog delay line - Wikipedia
Ultrasonic Transducers - Ultrasonic (Conventional) Transducers - Technisonic Probes - Finger Tip Probes - Technisonic Probes - Technisonic Delay Line HR Fingertip Probes - NDT Supply.com
Towards a CMOS compatible ultrasonic delay line memory | Semantic Scholar
