
Back door has a five-pin tumbler system,
single CIRCUIT alarm. Child's play.
The Big Bang Theory Season 3, Episode 14

I don't know if we have enough solder
to finish these CIRCUIT boards.
The Big Bang Theory Season 9, Episode 19

- Not very.
- That's a miniaturized, integrated logic CIRCUIT.
The Big Bang Theory Season 8, Episode 22

...is a little man with a flashlight
searching for a CIRCUIT breaker.
The Big Bang Theory Season 1, Episode 3