[Transformers for Electra], circa 1904-1908

Item — Box: 3, Box: 3

Identifier: MSS P 585 Series 1 Item 110

Staff Only

Image of [Transformers for Electra]

Scope and Contents

This is a large piece of equipment with cylinder-like protrusions. The insulators (model Locke #348 produced by Fred M. Locke) were installed when the plant voltage went from 40,000 to 60,000 volts just after 1904. The marble slab boxes are oil switches to disconnect the outgoing 60,000 volt line to Stockton, California.

Dates

circa 1904-1908

Conditions Governing Access

Open for public research. Proofs of the negatives and original photographs are kept in cold storage and access requires 24 hours advance notice.

Gelatin dry plate negatives are restricted.

Conditions Governing Use

Permission to publish material from the Edith Irvine Photograph Collection must be obtained from the Reference Supervisor, L. Tom Perry Special Collections, and the L. Tom Perry Board of Curators.