MRL® Handbook No. 1

Headphones: Operation and Repair

This handbook contains 33 detailed drawings to help you. The material has been collected over a number of years - and much of it cannot be found in the radio texts, libraries, etc.

Because most fans buy one good pair of phones in a lifetime, it is a good idea to keep them in repair.  Using phones in poor condition cannot give best results in DX reception, tone, etc.

This handbook gives data on the old as well as more modern ones as well as information on how to keep them in good working order.

Contents:

    1.    History
    2.    Our Ears
    3.    Diaphragm Vibration
    4.    Resistance and Impedance
    5.    Line vs. Radio Phones
    6.    Phone Repairs
    7.    Practical Use of Phones
    8.    Classifications
    9.    Care of Phones: A Review

$3.00 postpaid U.S.A.