Morse_code_set_using_an_LM3909_chip

Published:2009/7/17 4:50:00 Author:Jessie | From:SeekIC

Morse code set using an LM3909 chip. Circuitry inside dashed lines is the LM3909. The three-wire system and parallel telegraph keys allow the user to practice with send/receive switches (courtesy National Semiconductor Corporation).



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Morse_code_set_using_an_LM3909_chip.html

Print this Page | Comments | Reading(3)