Special Features:

Cognizant service: air force; panel w/forty keys marked: ds5, ds7, ds6, freq, mod freq, om, am, fm, aplitude, fctn off, store, recall, seq, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, back space, store, recall, seq, ghz, mhz, khz, hz, up arrow, down arrow, x 10, divide 10 and other color coded; contains one capacitor, eight led lamps, two connectors and five resistors;

Properties:

A device for data input by key depression which causes the generation of the selected character, numeral or the like.