The MFJ-557 Deluxe Morse Code Practice Oscillator features a Morse Code straight key on a non-skid heavy steel base -- it stays put on table and doesnt move around while youre sending! The MFJ-557 lets you practice sending code at home, work, riding in your car -- practically anywhere ...
Letters, numbers, prosigns, or any combination for practice usingfive character groups, or more realistic 1-8 groups. Product ManualsReviewsRecommended for the MFJ-490E, MEMORY KEYER/MFJ-564B PADDLE COMBO MFJ-557, CODE OSCILLATOR, WITH TELEGRAPH KEY ON METAL BASE $69.95 MFJ MFJ-564, PADDLE...