Part 4/5:
Once reassembled, the device undergoes electrical testing. The keeper verifies that all switches and mechanisms function correctly, showcasing the importance of thorough testing after repairs. Despite the age and complexity, the device appears to operate well, with no vacuum parts or other advanced components beyond the electrical controls.
The narrator emphasizes the gadget’s complexity and hints at its vintage origin. They are eager to demonstrate its working condition by taking photographs and preparing for a demonstration.