Winding transformer coils
5 x 7 in. or smaller
- Date
- 1925
- Collection
- National Photo Company
- Archive
- Library of Congress (via Wikimedia Commons)
- Type
- photograph
- Original size
- 5,937 × 4,272 pixels
Public domainsafest
Reason: National Photo Company collection at the Library of Congress: no known restrictions.
Read from: Commons licence category: PD-National Photo Company; no CC BY, CC BY-SA, GFDL or deletion tag on the file page; permission field: No known restrictions on publication. For more information, see National Photo Company Collection - Rights and Restricti.
Credit line
"Winding transformer coils" (1925). National Photo Company. Library of Congress, Prints and Photographs Division, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Winding_transformer_coils_LCCN2016850643.jpgNeed photos for a whole script? Add Find Any Photo to Claude and ask for this one by its id: 367743.
More like this
Camden, New Jersey - Radio. RCA Victor. Close-up of coil winder's hands.
1936–1937 · U.S. National Archives
Telephone machinery?
1925 · Library of Congress
Condenser assembling dept.
1925 · Library of Congress
Camden, New Jersey - Radio. RCA Victor. Coil winder - If a girl has good fingers for this work, she can become expert on this job in three weeks. If she is not naturally deft, she never learns.
1937-03-04 · U.S. National Archives
Device takes time signal from pendulum of clock. ingenius apparatus takes a time signal from the pendulum. A clock without mechanical contact and the time thus. accurate to a small fraction of a second variation. day. This device was invented by R.E. Gould, Chief of Time Section of the
1926 · Library of Congress
Scientific instrument?
1925 · Library of Congress
M.S. Strock measuring radio lengths at Bu. of Stan., 2/19/25
1925 · Library of Congress
Government discovers method to preseve film. Folding endurance test, The flexibility is measured in this folding endurance tester. A strip of film is folded back and forth under tension until it breaks, and the number of folds it withstands is counted. Three types of films have been studied, termed
1938 · Library of Congress