Browse Items (22 total)

Map Of Campus - 1926-1927 Handbook of the California Institute of Technology

Every incoming Caltech undergraduate student receives the latest edition of the campus handbook, the little t. In the 2025–2026 edition, the little t…

Eagle Rock Substation Looking North

The Eagle Rock Substation was the endpoint of the transmission lines stretching from the Big Creek to Los Angeles, initially spanning 240 miles and…

Birdseye View Plan of 18 Powerhouses at Big Creek

Starting in October 1900, John Eastwood was set on creating a power plant in the upper San Joaquin River and created Mammoth Power Company (Jackson…

High Voltage Laboratory Lease Between Southern California Edison and Caltech

This lease contract between SCE and Caltech describes the terms for the High Voltage Lab, which marks the most direct collaboration between Caltech…

Investigation of Transformer Burn Outs at Kern Substation

This report describes Professor Sorensen’s experiments on the Kern substation, owned by Pacific Light and Power (PL&P). Sorensen was a Consulting…

A 220 kV Rack at Eagle Rock Substation

Eagle Rock Substation was a result of the work that the High Voltage Laboratory at Caltech performed on transmission lines. Without the work of High…

High Voltage Research Laboratory

In 1923, Caltech and the Southern California Edison Company built the High Voltage Research Laboratory, the first university laboratory in the world…

Celebrating 125 Years (1886-2011)

This DVD was produced By Southern California Edison, a consolidation of Henry Huntington’s power generation interests formed in 1917, detailing their…