Game Instructions

Tap a tile to toggle its color. When a tile changes nearby tiles may change as well. Each move affect multiple tiles. The target is to turn all tiles into yellow in the fewest steps possible.

Press 'j' to show/hide the game. Press 'i' to show/hide the instructions. Press 't' to show/hide the top score table.

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Press J to toggle the game, I to toggle instructions, and T to toggle the top scores

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Oscilloscope: 251

I’d be happy to help you develop a feature about an "Oscilloscope 251" — but just to clarify, there’s no widely known commercial or historic oscilloscope model with that exact name. It sounds like it could be:

Below, I’ll develop a creative feature set for a fictional Oscilloscope 251, treating it as a compact, modern digital oscilloscope with retro inspiration. You can adapt this for a user manual, a product page, a sci‑fi prop, or a maker project. oscilloscope 251


The oscilloscope is a fundamental diagnostic tool in electronics and physics. Its primary function is to graph electrical signals as they vary over time. While a voltmeter provides a single numerical value of voltage, the oscilloscope provides a visual "waveform," allowing the user to analyze not just amplitude, but frequency, distortion, and timing. In the context of a "251" laboratory setting, mastering this device is essential for understanding AC circuits, resonance, and transient analysis. I’d be happy to help you develop a

  • VOLTS/DIV: The rotary knob. Turn clockwise to zoom out (less vertical sensitivity). Pro tip: Avoid turning it fully counter-clockwise to "5V/div" when looking at a 100mV signal.
  • In a standard curriculum, the following measurements are typically performed: Below, I’ll develop a creative feature set for

    This controls the Voltage (Y-axis). You have two identical control banks for Channel 1 (CH 1) and Channel 2 (CH 2).

  • VARIABLE: A small knob usually set to the calibrated (detent) position. If turned, it lets you scale between settings (uncalibrated).
  • The Tektronix 251 is a 100 MHz, dual-channel oscilloscope. It is unique because it allows you to view signals in real-time (analog mode) or capture single-shot events (digital storage mode).

    ⚠️ Safety Warning:


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