San Francisco Photo Store

Photographs of San Francisco and the Bay Area

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Massive Dynamic Logo Key Chain - Fringe Walter Olivia Peter

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Doctor Who Seal of Rassilon Logo Key Chain - Doctor Who Timey Wimey Gallifrey

You might not be a Time Lord like the Doctor, but you can pretend. This key chain is laser cut from 3/16 birch plywood and comes with a 1.125 metal

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Laser cut Stargate SG-1 Gate:  https://www.etsy.com/listing/219162025

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Battlestar Galactica - Senior Pilot Qualification Wings Pin

You can pretend you are a Viper Pilot with senior flight status when you put this pin on your jacket or bag.

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RAW Show a Success

RAW Show a Success

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Vacuum Tube 001

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Vacuum Tube 002

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Vacuum Tube 003

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Vacuum Tube 004

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Vacuum Tube 005

A close up photograph of a group of vacuum tubes.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Telescope 001

Close up photograph of one of the two large telescopes at the Chabot Space Center in Oakland, California. This 8″ refracting telescope is named Leah and was built by Alvin Clark & Sons in 1883. It features a German equatorial mount. It was donated by Anthony Chabot for public use and education.

Available in various sizes with or without mattes and frames.

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Computer 001

Close up photograph of old computer circuit boards.

Available in various sizes with or without mattes and frames.

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Vacuum Tube 006

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Vacuum Tube 007

Close up photograph of an old vacuum tube.

A vacuum tube is a device that controls electric current through a vacuum in a sealed container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Invented in about 1910, vacuum tubes were a basic component for electronics throughout the first half of the century, which saw the…

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Mechanism 001

Close up photograph of Charles Babbage’s difference engine from the late 1800’s.

Available in various sizes with or without mattes and frames.

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Mechanism 002

Close up photograph of Charles Babbage’s difference engine from the late 1800’s.

Available in various sizes with or without mattes and frames.

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Soyuz Capsule 003

It was decided to go with the “headlight” shape that the Soyuz uses—a hemispherical forward area joined by a barely angled conical section (seven degrees) to a classic spherical section heat shield. This shape allows a small amount of lift to be generated due to the unequal weight distribution. The nickname was thought up at a time when nearly every headlight was circular.

“The Soyuz is a flying…

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