Materials of the First Video Game Console: The "Brown Box" (1968)

Ralph Baer's Prototype Hardware

The Brown Box (Magnavox Odyssey precursor) used 1960s-era components:

Electronics

• Vacuum tubes: Signal amplification/switching (early prototypes).
• Transistors: Germanium/silicon — switching, logic (replaced tubes in later revisions).
• Passives: Carbon-composition resistors, ceramic capacitors, air-core inductors.
• PCBs: Single-sided phenolic (FR-1), hand-etched traces.
• DTL/RTL logic ICs: Fairchild μL900-series (diode-transistor logic) for game state.

Mechanical & Housing

• Wooden cabinet: Walnut veneer plywood, hand-assembled.
• Chassis: Steel bracket frame mounting PCB & power supply.
• Controls: Bakelite knobs (horizontal/vertical), toggle switches (game select), reset button.
• RF modulator: Channel 3/4 output to TV antenna terminals.
• Overlay sheets: Static cling plastic for screen graphics (tennis, hockey, etc.).

Power Supply

• Linear transformer → bridge rectifier → capacitor filter → 7800-series regulators (±12V, +5V).

Historical Note

Only ~10 Brown Box units built. Magnavox Odyssey (1972) cost-reduced: custom ICs (TI SN7400 series), injection-molded plastic, removable cartridges (jumper wires). Atari Pong (1975) further integrated into single "Pong-on-a-chip" (Atari C010076).