I'm fairly new to the world of electronic design. I'm building an astable 555 timer with the limitation being I can only drive it with a 3v coin cell battery (design has to be lightweight). I've been experimenting with different buzzers in search of a very loud one. The buzzer I am utilizing is 3v - 7v range. I am assuming the capacitors and resistors are reducing the voltage the buzzers sees in this circuit? Is there a simple approach to boosting the voltage? Or is this a current problem? Or both? I can achieve my desired dB with double the voltage on my power supply with this circuit. Same dB level applying the voltage directly to the buzzer. Thanks!
https://imgur.com/a/4gv3pIF Ref: Jason Poel Smith, instructables.com