Miscellaneous Parts

These are elapsed time meters. They consist of a small amount of mercury, separated by a chemical compound (I don't know exactly what it is). A small current is passed through the device, and the mercury is transferred across the chemical very slowly. As this happens, the small gap will move the opposite way. These meters can be reset by reversing the current flow.

These are very tiny DPDT relays in a TO-3 can.

This is an incandescent light from a digital watch.

Not too many people save watch lights.

These are incandescent seven-segment readouts. They came out just before LED displays. They were preferred over Nixie tubes because they didn't require such high voltages.

This is a linear image sensor, similar to the sensors used in flatbed scanners.

These are vacuum capacitors. Sealed in a vacuum, they are good for much higher voltage than air dielectric caps.

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