bjoneson
Well-known member
I'm prototyping a VE summing circuit based on a 990 opamp. Schematic attached.
There seems to be a very low frequency oscillation occurring, and I'm trying to get to the bottom of it.
C32 and C33 in the servo circuit, I have polarized tantalum caps installed, and wondering if that's contributing.
Any help is greatly appreciated.
There seems to be a very low frequency oscillation occurring, and I'm trying to get to the bottom of it.
C32 and C33 in the servo circuit, I have polarized tantalum caps installed, and wondering if that's contributing.
Any help is greatly appreciated.
