Reprint from QST Magazine of December 1916, "Westfield, N. J., Radio Station"

Material

Paper (Fiber product)

Technique

Printing (Process)

Color

Black-and-white (Colors)

Dimensions

Height: 9.5 in

Width: 6 in

Inscriptions

Handwritten in ink on front: Chas. E. Apgar / Aug. 1942 Ink stamp on back: THE EDISON INSTITUTE / LIBRARY

Homemade Audion Control Box, Used by Charles Apgar...

Details

Homemade Variable Condenser, Used by Charles Apgar...

Details
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