elskardio
Well-known member
Hi Guys,
For the past week I’ve been testing a variable trim option for my mic preamp.
It’s a simple volume control, between the 2 gain stage, with an extra resistor to limit the range.
I’m presently using a 1K pot. I want to avoid any unnecessary load to the opamps. It’s working great and I didn’t measure any change in the noise level of the preamp.
Should I try with lower values?
Here’s the basic schematic:
Any suggestions?
Thanks
For the past week I’ve been testing a variable trim option for my mic preamp.
It’s a simple volume control, between the 2 gain stage, with an extra resistor to limit the range.
I’m presently using a 1K pot. I want to avoid any unnecessary load to the opamps. It’s working great and I didn’t measure any change in the noise level of the preamp.
Should I try with lower values?
Here’s the basic schematic:
Any suggestions?
Thanks