joe smith | EEVBLOG 121GW DC mV Stability Test, Conclusion @joesmith-je3tq | Uploaded September 2023 | Updated October 2024, 5 days ago.
Video showing my attempt to possibly explain the instability problems seen with my EEVBLOG 121GW when applying a 500mV source.

For context, please see the following thread on EEVBLOG:
eevblog.com/forum/testgear/brymen-bm789-360289/msg5031622/#msg5031622