matthieu68
Active member
- Joined
- Jul 11, 2017
- Messages
- 25
hello, I am embarking on the redesign of the cards of an old mixing console and I would have liked some suggestions concerning the Pre-amp.
To improve it I was already thinking of changing this opamp by an op134 for example (I have some on hand) but the values adjusting the gain could be revised to reduce the noise.
Do you have any suggestions on which values to use? The potentiometer is connected via a cable so it could very well end up elsewhere depending on the topology used.
I think starting by lowering the value of the potentiometer and adding capacitors to filter the opamp is a good start but then? suggestions ? thank you
To improve it I was already thinking of changing this opamp by an op134 for example (I have some on hand) but the values adjusting the gain could be revised to reduce the noise.
Do you have any suggestions on which values to use? The potentiometer is connected via a cable so it could very well end up elsewhere depending on the topology used.
I think starting by lowering the value of the potentiometer and adding capacitors to filter the opamp is a good start but then? suggestions ? thank you