“Time Machine”: Modder merges Nintendo Switch 2 with 90s tube screen

For some, the evolution of flat screens killed the magic of gaming. With this in mind, YouTuber and modder Joel Creates decided to perform an engineering miracle: he built a portable device that merges the modern Nintendo Switch 2 with the analog technology of a tube TV (CRT). The result is a “beast” that weighs more than a notebook, has a battery that lasts just one hour, but offers an image that, according to him, no modern OLED screen can replicate.

“Frankenstein” Engineering

The basis of the project would initially be a Sony Watchman (portable color TV from the 90s), but during development the TV died with a burning smell after repeated cable extensions and mechanical stress. Joel tested a compact single-board GE Space Maker, but the image quality was so poor that he ruled out the option. The final TV chosen was a Memorex with a larger tube and better image quality, even though it required redesigning the entire chassis.

Technical challenges faced

Signal Conversion: The Switch 2 transmits in digital HDMI, but the CRT TV requires an analog composite signal. Joel implemented a triple chain of converters: HDMI > VGA > Composite. The HDMI to VGA conversion was strategic because it was non-staggered, avoiding additional latency. The first HDMI converter caused audio glitches that were resolved by shielding the connector with aluminum tape.

Controls: Initially Joel planned to use N64 controls, but decided against it because they only had an analog joystick and a single board that would need to be split manually. The solution was to use GameCube Joy-Cons with two separate boards, two joysticks and Nintendo style, as well as proven to work with the original Switch. He disassembled the Joy-Cons, redid all the wiring, and reassembled them in ergonomic side handles with grips.​

Premium Audio: Joel wanted to use speakers from a iMac G3 original, but all models found had replaced or burned speakers. He researched specialized forums and bought community recommended substitutes that replicate the original sound quality, installing them in closed acoustic cabinets

Food: The system uses a power bank de 100W which powers all components via USB regulated at 5V (converter, fans and controllers). The battery lasts approximately one hour of gameplay

Design inspired by the 90s

The big creative leap was discovering the 45-degree angle through AI-generated images. This angle allowed us to hide the length of the tube inside the body while keeping ergonomic controls accessible. Joel had never done 3D design before January 2025, learning as he went along with the project while recovering from a severe herniated disc.​

The Switch 2 slides forward like a VHS tape, connecting to the modified dock via USB-C cable extension. The original dock was disassembled and its motherboard repositioned inside the chassis along with two cooling fans.

Philosophy behind the project

This was the first new console Joel bought at launch in his entire life. He grew up with limited access (1 hour of computer time per week), buying everything used at thrift stores. His father explains that he wanted to avoid internet addiction and encourage real social interactions.

Joel argues that the size of the device is intentional: unlike the traditional Switch, which isolates the player, his “monster” needs to stay on his lap and allows others to see the screen next door, rescuing the social experience of “gathering around the tube like a campfire”.

Final hurdles

Near completion, Joel burned the converter and controllers by connecting 12V instead of 5V by not checking the dip switches on the USB board. Had to order all the parts again, disassemble and reinstall everything.​

The project took 10 months (January to October 2025) and cost approximately US$500 just for the Switch 2, not counting TVs, components, 3D printing and burnt parts.