Some methods of testing radio receiving sets

Technologic Paper, No. 256, on “Methods of Testing Radio Receiving Sets” is ready for distribution by the Superintendent of Documents at 10 cents per copy. The paper describes methods of measuring the electrical characteristics of a radio receiving set and formulates statements of features which may be learned by an inspection of the electrical and mechanical design of a set. This work was undertaken at the request of the Bureau of Agricultural Economics of the Department of Agriculture, representatives of radio manufacturing companies, testing laboratories, and other organizations. In developing the test methods described it has been the Bureau´s aim to provide means for determining to what extent a receiving set embodies the following characteristics