Is this flux residue or the PCB is burnt? - Electrical Engineering Stack Exchange
Etching printed circuits boards at home
Printed circuit board brown hi-res stock photography and images - Alamy
How to Prototype Without Using Printed Circuit Boards : 8 Steps - Instructables
Why where old pcbs brownish/beige and now they are green? - Quora
Converting an Inkjet Printer to Print PCBs : 13 Steps (with Pictures) - Instructables
PCB etching with photosensitive dry film – now working consistently. – The Society of Secretive Squirrels
Need Diode replacement for circuit board | DIYMobileAudio.com Car Stereo Forum
Sticky brown gunk smeared all over the underside of a PC Engine Duo system PCB — Could it be that infamous electrolytic fluid from leaking caps, or something more harmless? : r/consolerepair
board - What is this waxy stuff? - Electrical Engineering Stack Exchange
Rectangular Brown Lg Washing Machine Pcb Board at Rs 2949/piece in South 24 Parganas | ID: 24595649788
Brown PCB isolated stock image. Image of circuit, metal - 23755201
Color TV Wired Printed Circuit Board at Rs 675/piece | Delhi | ID: 23610951430
Messy PCB - Fusion 360 Blog
Old circuit boards hi-res stock photography and images - Alamy
Ask Hackaday: What Color Are Your PCBs? | Hackaday
Yellow Glue
Why so many types of glues used in securing electronic components ?
should i worry about this stuff? there's some brown stuff on what looks like a black capacitor, with one side having a silver top, and some yellow stuff under what looks like
Printed circuit board brown hi-res stock photography and images - Alamy
How do I remove the yellowish brownish glue that is stuck to the capacitors? : r/AskElectronics
Naked Electronics Pattern Background Printed Circuit Stock Photo 1460294951 | Shutterstock
Capacitor plague - Wikipedia
what causes the black corrosion /deposit on the pcb? | Electronics Forum (Circuits, Projects and Microcontrollers)
Desoldering...... I have another soldering question for you guys, what's the best method of desoldering large pads like this without hurting nearby components? I have a Hakko FX-888D and an old Weller
