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William Coolidge: Vacuum Tube for X-Ray Production, 1926

Merits of the Coolidge Tube

On this page, you will find correspondence about the merits of the Coolidge Tube.

Bowen to CSA Secretary
David R. Bowen to George A. Hoadley, Commenting strongly in favor of the Coolidge Tube with a caveat concerning its commercialization, 3/19/1926. (484K)
Page 2 (396K)

Pancoast to CSA Secretary
Henry K. Pancoast to George A. Hoadley, Commenting on the epochal nature of the Coolidge Tube, 3/22/1926. (598K)

Ames to Hoadley
J.S. Ames Letter to George A. Hoadley, Commenting on the fundamental importance of the Coolidge Tube in X-Ray research, 3/22/1926. (345K)

CSA Secretary to Pancoast
Committee Secretary Letter to Henry K. Pancoast, Appreciating the reply regarding experiences with the Coolidge Tube, 3/23/1926. (489K)

Manges to Hoadley
Willis F. Manges Letter to George A. Hoadley, Praising the Coolidge Tube as a benefit to humanity, 3/25/1926. (444K)