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Deflection galvanometer, composed of two stationary inner coils and one revolving outer coil. Possibly made in the Caltech Physics Shop, ca 1920s–1930s. Photo ID ST-PH-28





To submit a request for an appointment or for copies of materials, please register for an Archives account. You may submit a request as soon as you have created your account.

For general inquiries, please contact us in the following manner:

Fax (626) 395-4073
Telephone (626) 395-2704
U.S. Mail Caltech Archives
Mail Code B215A-74
Pasadena, California 91125


The Caltech Archives Staff

Peter Collopy
University Archivist and Head, Special Collections

(626) 395-2702

Loma Karklins
Archivist for Reader Services

(626) 395-2704

Penelope (Penny) Neder
Processing Archivist

(626) 395-2702

Elisa Piccio
Associate Archivist for Digital Collections Development

(626) 395-2502

Bianca Rios
Assistant Archivist for Digital Projects

(626) 395-5342

Maria (Mariella) Soprano

Senior Archivist for Collection Management

(626) 395-2501


Archives Reading Room Hours:
Monday through Friday
8:30 a.m. to 11:45 a.m. and 1 p.m. to 4 p.m.

Please note: Access to the Caltech Archives for the non-campus community is by appointment only. Campus community is encouraged to phone or write ahead to be sure of staff assistance and space availability.

We are closed on weekends and major U.S. holidays.

Upcoming holidays:

  • Monday, September 4th (Labor Day)
  • Thursday, November 23rd-Friday, November 24th 2017 (Thanksgiving Holidays)
  • Monday, December 25th 2017-Monday, January 1st 2018 (Christmas-New Year Holidays)
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