MFJ-554 MORSE OSCILLATOR
MFJ-554 Classroom Morse Code Oscillator produces a true pure sine wave ideal for sending Morse code to students. It delivers 1W into a built-in 76mm (3in) speaker with distortion of less than 0.2%. * Low distortion sound 400-1000 Hz * Audio power 1W (Vol. Cntrl) * Internal 76mm (3in) speaker * Ext. 3.5mm speaker jack * Ext. socket 12V DC * Size 120 x 38 x 127mm.
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