This is the TI-2500 Datamath, one of the first electronic calculators. It looks like it inspired a certain Engineer's PDA... : r/tf2
Players calculate Valve Losses after Unusual item fiasco | GameWatcher
Damage - Official TF2 Wiki | Official Team Fortress Wiki
gwagwazombie on X: "I'm bored, TF2 Engineer loadout showcase. They are in order 1. Normal Engineer 2. Bird 3. Pocket Calculator - Kraftwerk 4. Satan https://t.co/G49YemBk74" / X
TF2 Construction PDA | Team Fortress 2 Cosplay – Arkan Cosplay
Helluva boss may have made a tf2 reference : r/tf2
Team Fortress 2 Sensitivity Converter / Calculator - GamingSmart.com
Players calculate Valve Losses after Unusual item fiasco | GameWatcher
GitHub - FancySnacks/TF2_MetalCalculator: Team Fortress 2 Metal Calculator - enter value and display total amounts of keys and metal you need.
TF2: Beyond Basic Class Types - Part 2a - Health by ReachNetwork on DeviantArt
Cursed engineer made with the Desmos Graphing Calculator : r/tf2
gwagwazombie on X: "I'm bored, TF2 Engineer loadout showcase. They are in order 1. Normal Engineer 2. Bird 3. Pocket Calculator - Kraftwerk 4. Satan https://t.co/G49YemBk74" / X