Code Practice Oscillator + cable

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  • Description

CPO PLUS - Code Practice Oscillator plus CP2 cable.  Need to learn how to use a bug or straight key without the key connected to a radio?  Our CPO with CP2 cable is ready to use.  Includes CPO board, speaker, cable.  Add 9V battery.  700 Hz tone from LM386 audio chip @350 mW output power.  Not an electronic keyer - for use with bugs and straight keys only.