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Old 27th March 2013, 03:36 PM   #1
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Question Power for a 13.5V DC circuit

Hi all --

I have breadboarded out this circuit to make a snare drum sound: Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

However, I would like to power this circuit with a 9V battery if it were possible. I have tried removing some components to lessen the circuit load, but they cause the sound to deteriorate.

This circuit needs at least 13V to sound good. Any ideas about how I could modify it so that it would only require 9V or less? Otherwise, I may just connect two 9Vs together and use a voltage divider for installing this circuit into a stomp box.
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Old 27th March 2013, 05:04 PM   #2
Enzo is offline Enzo  United States
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Location: Lansing, Michigan
Maybe lower the resistance of the 4.7k collector resistor of the noise transistor?
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Old 28th March 2013, 03:39 AM   #3
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Thanks -- I'll try that.
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