Audio Modulated 555 Timer

IMPORTANT: Put a 2.2-10uF capacitor between the audio pole and the pin 5. This will make the sound output louder, and clearer. Use a 50 volt capacitor. I use electrolytic

Update: As of 11/16/10, I just purchased a breadboard on ebay. I should be here sometime in December. Just figured I should notify everybody, that I am not proud of this mess, and I am better than that

Simple audio modulation of a 555 timer inputting audio into pin 5 of the timer. This works with use of a flyback (singing arc) or just for a frequency generator and a speaker.

Category:

Science & Technology

Tags:

• juniortore1
• 555
• timer
• frequency
• generator
• audio
• modulation
• singing
• arc
• flyback
• transformer
• driver
• mosfet
• pin
• music
• input
• speaker

[JerwuQu]

What exactly is this useful for?

[juniortore1]

@JerwuQu nothing really much. Can use it for a frequency generator, or a pulse modulator

[ConnorXV]

haven't you got a solderless bread board?

[juniortore1]

@ConnorXV Not at that time.

[ConnorXV]

@juniortore1 ok, before i blagged one from school it was a nightmare making test circuits

[juniortore1]

@ConnorXV I finally for sick of blowing my circuits by not connecting it right so i finally pulled the three dollars out of my ass and bought a little one on ebay. I burned that out after a lot of use though. I need another at some point.

[ciprianwiner]

i found an very simple solution, instead of just tuning the frequency here is the simpliest solution: power up the 555 play some music and then disconnect the pot from the pin 7 and 6, hope this helps :D

[08Kutt]

i put a 200nF capacitor in the pin 5 and a 4,7nF in the 2+6 :DDD

[08Kutt]

now the arcs is orange! with musik! its so cool!!!

[juniortore1]

@08Kutt lol, I am glad it worked for you