Mullard PC88 vacuum tube box (front)

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Mullard PC88 vacuum tube box (rear)

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Mullard and Mazda vacuum tube boxes

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Mazda PC88 radio vacuum tube

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Mazda PC88 radio vacuum tube

WWW.PIKU.CO.UK

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Three PC88 radio vacuum tubes stood on a silicon wafer

The wafer contains millions of transistors, each transistor doing the same job as a vacuum tube

Macro shot of silicon wafer

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SJ PMOS1 09 Silicon wafer

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Macro shot of silicon wafer showing writing

The text contains the words "test mask"

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