Electronics > Beginners
[SOLVED] NE555 as a tone generator for Morse code practice
Zero999:
Minimising the coupling capacitor will reduce power on thump. Don't forget it only has to pass 1kHz, not the usual 20Hz in an audio amplifier. The turn on sound will be a higher pitch click, than a big thump. Using diodes, rather than a lamp will make the oscillator stabilise more quickly, at the expense of a poorer THD.
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