Also, wouldn't PAL to NTSC signal be an issue as well? The TV will probably have a different signal than the console, so you might need a converter for that? Next, you can use any 12v AC/DC adapter with a 5.5 × 2.1mm barrel size and a center positive tip. I believe you can use a compatible Triad power supply as well, however none of the ones we currently use for retro consoles would work without an adapter, so I think just buying the proper one is best.

Crafted with precision and compatibility in mind, this power supply adapter is a perfect match for your cherished Nintendo 64. Say goodbye to those generic, unreliable power adapters that could potentially harm your console and welcome a safer alternative that meets the exact voltage and amperage requirements of your console. Even if it were the other way around opposed to your case: If you would have a 110V power grid and your step-down power supply would deliver proper voltage, it may overload the current consumption and overloading your power supply current-wise on it's primary side. Which means: the AC- Alternating Current is running through the "SAME" wires; thus being handled on the same WAVEFORM.

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Let's see, you're plugging a power supply needing 220 volts into an outlet that only provides 110 volts using a cheap travel adapter that only adapts the physical shape of the plug and converts nothing voltage wise. I'm going to guess that this is the issue causing you problems. Note: Even when I play the original Super Mario 64 and other games, it freezes randomly too and does those three things I've listed above. It isn't a huge difference, and I have read online that it is okay to use Japanese stuff in American without a converter unless it's something more important like medical equipment.

Do not buy or use electrical products that plug into an electrical outlet without a certification mark.Official Nintendo Power Supply for your N64. These are from Japan but have been tested and cleaned and perfectly safe use in North America for your N64. Durable Build: The adapter's robust construction ensures durability, guaranteeing a long lifespan and countless gaming adventures for years to come. Its high-quality materials and craftsmanship make it a reliable companion for your nostalgic gaming moments.