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Philo T. Farnsworth

 File — Box: 1, Folder: 34

Scope and Contents

  1. 1-2: Negative for P0437n01_08_022.
  2. 3: Negative only, graph comparing Bell Telephone transmitter (1927) and Capehart Farnsworth Preamplifier (1951) cycles per second.
  3. 4: Negative only, side view of the path of electrons in a magnetic field.
  4. 5: Copy work, negative only of a television show recording .
  5. 6: Negative only, diagram of "the 'photo island' structure used in the Farnsworth tube." Duplicate P0437n01_36_010.
  6. 7: Negative only, diagram of Television transmitter systems.
  7. 8: Negative only, diagram of Block diagram-master timing generator.
  8. 9: Negative only, possibly fusor related
  9. 10: Negative only, diagram of equipment by Ted Goodwin, February 1951.

Dates

  • Creation: 1900-1980

Creator

Conditions Governing Access

Twenty-four hour advanced notice encouraged. Materials must be used on-site. Access to parts of this collection may be restricted under provisions of state or federal law.

Extent

From the Collection: 1.75 Linear Feet (4 archives boxes)

Language of Materials

From the Collection: English

Repository Details

Part of the J. Willard Marriott Library Special Collections Repository

Contact:
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