Simple Sawtooth Oscillator circuit help.

Thread Starter

KyxeMusic

Joined Nov 9, 2017
1
I have done and tested this circuit design on the breadboard and It works fine.
https://gyazo.com/1717d6d8fef5ccb8b7f1ca640ec17742
The Potentiometer changes the frequency of the oscillation, thus changing the pitch of the audio output.

However, I would like to add another potentiometer that will change the Amplitude of the oscillation (a volume knob). How would I have to add the potentiometer to the circuit?

PD: The Input voltage is actually 19V, not 9V
 
Last edited:

dl324

Joined Mar 30, 2015
15,098
Welcome to AAC!

Circuit in question:
clip4.jpg
I would like to add another potentiometer that will change the Amplitude of the oscillation (a volume knob). How would I have to add the potentiometer to the circuit?
If you want to decrease volume, use a pot and put a voltage divider on the output. If you want to increase amplitude, you need to add an amplifier.
 
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