Image: Spark-gap apparatus

Size of this preview: 593 × 599 pixels. Other resolutions: 237 × 240 pixels | 1,097 × 1,109 pixels.

Original image ‎(1,097 × 1,109 pixels, file size: 1.16 MB, MIME type: image/png)

Description: High-power (15 kilowatt) spark-gap transmitter at the United States Navy Yard, Washington DC. call sign| QI from 1907 on 840 and 1125 meters, on 900 meters from 1908, call NAL from 1909. Manufactured by Massie Wireless Telegraph Company.[1] Original caption: "Figure 8. – High-power Outfit, with Rotating Spark-gap Mounted on Leyden-jar Battery Frame, and Hot-wire Current Meter Mounted on Inductance Frame. – Navy Yard, Washington, D. C."
Title: Spark-gap apparatus
Credit: (1909) Wireless Telegraphy and Telephony Popularly Explained, Category:New York: D. Van Nostrand, p. 21
Author: Walter W. Massie and Charles R. Underhill
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

Image usage

The following page links to this image:

Massie Wireless Station

All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.