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The Black-Hole Diode -- April Fool's Day, 1981
Byte Magazine, in its What's New column, described a useful new computer component, the 7N-∞ BHD (black-hole diode):
Another new addition in the small-components market is the 7N-∞ BHD (black-hole diode). This device has two inputs and no output. Care must be taken to shield this component appropriately or it may absorb the unit it is placed in. The 7N-∞ will accept any voltage or current value. It is useful for GI (garbage-in) applications. Due to the light-absorption qualities of the device, we could not provide a photograph. Contact Spatial Regression Ltd, POB 463, Paulborough NH 03458.
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