Uploaded April 2023 | Updated September 2026, 2 weeks ago

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We try our hand at retr0brighting a very yellowed Protek power supply, with a simplified method.

Amazon link for Salon Care 40 Clear Developper: amazon.com/40-Clear-Developer-32-oz/dp/B004OKA0EI/ref=sr_1_3?crid=31SWZDEM6CVLZ&keywords=salon+care+40&qid=1681212571&sprefix=Salon+car%2Caps%2C160&sr=8-3

My page of Amazon links for the lab tools and products I use: curiousmarc.com/amazon-links

Stuff that supports the channel:
- Amazon links for the tools I use in the lab (supports the channel if you buy from there)
curiousmarc.com/amazon-links
- Channel merch on Teespring: teespring.com/stores/curiousmarcs-store
- Support us on Patreon: patreon.com/curiousmarc

Our lovely sponsors
- PCBWay: fast turn PCBs, pcbway.com
- Electro-Rent: electrorent.com
- Keysight: test instruments: keysight.com
- Samtec: connectors: samtec.com
- R&D Microwaves: rdmicrowaves.com

Get more technical info on the companion site: curiousmarc.com
Contact info: youtube.com/curiousmarc/about