Online Encyclopedia of Western Signs and Ideograms Symbols.com

Symbol 42:61

4239

42:61 · Although strictly a sign belonging to Group 38 I will discuss this sign here, as most similar structures are assembled here. It is a modern ideogram on stereo sound equipment and radios, indicating the selector or outlet for tape recorder. It is also drawn 3808.
    Compare with 0411, socket for connecting the antenna, and 2220, outlet for loudspeakers .