How I Restore & Test Every Item

This is exactly what I do, and what I do not do, when I restore and test the items I sell.

My restoration philosophy

As an experienced electronics hobbyist, I’m also an avid collector who frequently buys retro items (both working and untested) for my own projects and enjoyment. Being on the buying side has taught me how valuable complete transparency is.

So I’m meticulously honest about the condition of every item I sell. That means spelling out exactly what restoration work has been done and, just as importantly, what has and hasn’t been tested. My goal is to give you the same level of quality and confidence I look for in my own purchases.

How I handle rust and corrosion

Many vintage consoles suffer from internal corrosion or rust, often from past liquid exposure or battery leaks. Left untreated, rust spreads, eating away at metal shielding and even destroying irreplaceable components on the mainboard. For that reason, every console I work on gets a thorough internal inspection for any signs of corrosion.

If I find rust, I don’t just wipe it away. I follow a careful, multi-step process to permanently neutralize it:

Neutralization: I use a mild acidic solution, like white vinegar, to chemically neutralize the active rust (iron oxide).
Cleaning: Once the rust is gone, I thoroughly clean the area with 99% isopropyl alcohol to remove any acidic residue.
Protection: Finally, I seal the treated area on the circuit board with a professional-grade conformal coating: a durable, non-conductive barrier that keeps out future moisture and stops the rust from ever coming back.

Desoldering into a ground plane

Some joints on these boards are much harder to melt than others, and it is not because the solder is different. It is heat transfer. A pin that ties into a large copper ground pour has an enormous heat sink attached to it: the pour carries heat away about as fast as a small iron tip can deliver it, so the joint sits just below melting and never releases. Barrel jacks, cartridge-slot ground pins, shielding tabs and multi-out connectors are all like this. Thick, multi-layer boards make it worse, because there is simply more copper to feed.

The instinct is to hold the iron there longer. That is the wrong move and it is how boards get wrecked: the joint still will not flow, while the heat spreads sideways into the laminate, cooks the board, and lifts pads and traces around the part you were trying to save.

What actually works is more thermal mass, not more time:

A large chisel tip rather than a fine point. Contact area is what moves heat, and a fine tip is the wrong tool no matter how hot it is.
A higher setpoint for these joints specifically, then back down for ordinary work.
Preheat the board if you have a hot plate or a preheater. This is the single biggest improvement, because it removes most of the gradient the pour is fighting you with.
Add fresh leaded solder to the joint first. It sounds backwards when you are trying to remove solder, but it improves thermal contact and lowers the melting point of what is already there, especially on a lead-free joint.
Get in, move the heat, get out. Short and hot beats long and warm.

The same reasoning explains why the ground pins are the ones that fight you when you pull a connector, while the signal pins next to them come out easily. It is not that they are soldered differently: they are just each attached to far more copper.

My testing philosophy: real-world gameplay

A simple power-on test isn’t enough. My final testing phase for any console and its controllers is real-world gameplay across several different and demanding cartridges. I insist on this because I’ve personally seen consoles that play one game perfectly but fail on another. It happens when a game uses specific pins on the cartridge connector that others don’t, or when a tiny, defective section of the console’s RAM is only touched by certain titles. Playing actual games also confirms everything feels responsive in active use, revealing subtle but critical issues (like intermittent button presses or D-pad inaccuracies) that a menu test would miss.

A note on bundled accessories

When you buy one of my bundles, you’re not just getting a console and a box of parts. You’re getting a complete, curated system where every component is verified to work together. I source and test the accessories so you don’t have to take that risk yourself. I once had to return a brand-new HDMI adapter that was dead on arrival, exactly so the bundle you receive is 100% plug-and-play.

My background as an electrical engineer lets me validate at a higher level, too. The modern power adapters I include are inexpensive, but they aren’t just thrown in the box: I test each one on my oscilloscope to confirm it produces clean, stable DC without excessive ripple or noise. That protects the vintage electronics and keeps them reliable for the long haul.