Testing the BST400 Boost Converter Fast Mode Mod

There's a video about a modification to the MingHe BST400 which appears to speed up it's voltage rise time. I thought I'd give it a try.

EDIT: I accused the BST400 of having an unstable output at the maximum output voltage (80V). I got that wrong. Checking with a DVM, I found the filament LED to be faulty - not the boost converter.
My original BST400 review video - Review: 400W Digitally Controlled DC/DC Step-Up Boost Converter - https://youtu.be/-kWps5Wpbzo

Jim Conner's BST400 review video - Review: 400W Digitally Controlled DC/DC Step-Up Boost Converter - Far from Perfect - https://youtu.be/Xp6uDBMn3cY

Kamil Gorecki's BST400 fast mode video - DC-DC Step up Converter 400W BST400 - How to set fast output mode - https://youtu.be/-RuJ5atWln4

orbiter8 (John)'s BST400 quirks video - 400W DC-DC Converter Quirks - https://youtu.be/RbGk5dvl38s

Видео Testing the BST400 Boost Converter Fast Mode Mod канала Julian Ilett