| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Without this 1947 invention of Shockley, Bardeen & Brattain, we'd have 40-pound Walkmans | Transistor | $800 | DJ | AMERICAN INVENTIONS | 2000-07-07 | #3665 | |
| About 1950, 3 Bell Telephone Labs scientists invented this, the 1st solid-state electronic device | transistor | $400 | J | INVENTORS | 1992-06-26 | #1820 |