Now, here. That's the anti-gravity generator.
6 seconds sound clip from the Santa Claus Conquers the Martians (1964) movie soundboard.
You can hear this line at 00:25:26 in the Blu-ray version of the movie.
Quote context
[...]
- All right, Billy and Betty. Nobody here. Come on in.
- Now, I'm not supposed to bring you here. The chief's going to be awful mad if he finds us.
- Boy, wait 'til the kids at home find that I was in a real Martian spaceship.
- No... no, don't touch anything.
- Now, here. That's the anti-gravity generator.
- And these are the retro rockets.
- Only when radar waves are bouncing off our ship.
- Then we put up this radar screen. Then nobody can find us in space.
- Yep.
[...]