expataudio
Mic Pre Frontend
A digitally controlled Mic Pre Front End that accepts 3.3V inputs, and switches relays to control:
Phantom Power
20dB Pad
Polarity (Phase)
A video of it working can be found here
(speed to about 1:20)
A video of it in prototype can be seen at here
A prelim user manual for the product is available in PDF format from here
What's in the box?
An unpopulated PCB
What else do I need to buy?
All other components. Bill of Materials below.
An orderable kit of parts from Mouser can be found here:
