Yun YY-6CS Surge Protector - Flickering Power Switch During Operation

Universal 71632 Surge Protector - Flickering Power Switch Demonstration (Manufactured in 1998)

Tripp Lite Spike Bar SK6-6 - Flickering Illuminated Power Switch

Test Music - MLI 691pa Speakers

Speaker hum - no music playing on 1990's vintage MLI 691pa desktop PC speakers.

ZyWall 110 Firewall with Fan Noise Demonstration

Power Macintosh 6500/250 Boot Test | Noisy Hard Drive

Brother HL-L6200DW Laser Printer Test Print and Operation Demo

APC BE670M1 Flashing Red Light - PowerChute Says No Battery - but the battery is installed.

Dell Black A215 Speakers Test

Epson FX-85 Printing Windows XP Test Page

1988 Democratic Convention Tape 4 Test of VHS tape.

Macintosh Quadra 800 Chimes of Death | Vintage Mac Boot Failure Sound

Antique Montgomery Ward Movie Projector Operating Demonstration