Box 4
Container
Contains 31 Results:
"Descriptive specifications of Learadio Lear-O-Scope Model LC 100 Radio Compass Direction Finder" -- booklet, engineering report, and specifications [RM files], undated (circa 1931-1939)
File — Box: 4, Folder: 30
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
undated (circa 1931-1939)
"Learadio 40 watt radio transmitter Model UT-6" and "Learadio aircraft transmitter-receiver combination Model T30-R3AB" -- brochures, undated (circa 1939)
File — Box: 4, Folder: 7
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
undated (circa 1939)
"Radio direction finder for aircraft Model L (Lear-O-Scope)" -- instruction manual, undated (circa 1931-1939)
File — Box: 4, Folder: 31
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
undated (circa 1931-1939)
AMR-1/AMRL-1 wiring diagram, 1939 August
File — Box: 4, Folder: 26
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
1939 August
Lear Developments logo, undated (circa 1931-1939)
File — Box: 4, Folder: 9
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
undated (circa 1931-1939)
Learadio AMRL-1 marine radio direction finder, Learadio compass, Learadio T30 aircraft transmitter, Learadio R3 aircraft receiver -- brochures [RM files], 1937-1938
File — Box: 4, Folder: 3
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
1937-1938
ARC-6 radio compass, AMR-1 receiver, AMT-1 transmitter -- brochures [RM files], undated (circa 1931-1939)
File — Box: 4, Folder: 8
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
undated (circa 1931-1939)
"Airplane and marine situation [L-R-5]" -- notes and report, 1936 July - August
File — Box: 4, Folder: 15
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
1936 July - August
"Learadio automatic landing field orientation device (L-P-[7 illegible number]) -- report, 1939 June
File — Box: 4, Folder: 5
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
1939 June
"Learadio airport localizer (L-P-2)" -- summary, correspondence, diagram, sketch, clipping, and Library of Congress certificate of copyright, 1939 September - October
File — Box: 4, Folder: 6
Scope and Contents: Series I: Lear Developments
From the Series:
Series I: Lear Developments provides insight into one of WPL’s earliest companies, Lear Developments, whose main focus was aircraft radio development and production. The company was established in 1931 and continued through 1939, when it changed its name to Lear Avia Inc. The series includes materials from the lifespan of the company as well as collected items dating earlier and some items dated later due to the restructure.The series is broken down...
Dates:
1939 September - October