u/Successful_Range6999

Hi Nerdz,

I'm building a line in to eurorack converter using the Befaco In Amp schematics and I want to add a Sallen Key Highpass filter to remove 50 hz rumble

I've taken the Befaco INamp schematic and deleted the 2nd input

Basically the Befaco inamp is 2 stages:
The first opamp stage is doing a 2.2 gain,
Through the potmeter
to the second opamp stage to output

Where would it be best to add the filter:
1 Before the inamp
2 In between the first and second gain stage
3 After the whole inamp

Where would you integrate the Highpass filter, and could opamps be shared?

Hello Y'all,

Excuses if this question is asked a lot. Tried to search the forum, got some answers but need to sanity check:

Im trying to get 5V for a STM32 chip from the 12V line.

Is this circuit correct? Or is there a better way of doing this..

It's basically the Moritz Klein schematic, with a AAMS1117-5.0 regulator for 5 volts, and some caps for filtering..

Any thoughts or feedback?
This is not going to be the layout, I just wanted to make it clear :)

Thanks in advance!