Sanyo VM-4509 9-Inch B&W CRT Monitor AC 120V DC 12V 1991 Commercial

Sanyo VM-4509 9-Inch B&W CRT Monitor AC 120V DC 12V 1991 Commercial

The Sanyo VM-4509 is a compact 9-inch black-and-white CRT monitor designed for commercial use. It accepts both AC (120V) and DC (12V) power, making it suitable for fixed installations as well as portable or vehicle-based setups. The unit was manufactured by Sanyo Electric Co., Ltd. in Japan in May 1991 and carries UL listing as a TV Monitor (E44404).

Specifications & What's Included

• Model: Sanyo VM-4509 (VM 4509 L)
• Screen size: 9 inches (CRT, black & white / monochrome)
• AC input: 120V, 60Hz — 33 Watts
• DC input: 12V — 17 Watts
• Dual AC/DC power operation
• Front panel: 4 control buttons, red power/status indicator LED, sliding door/compartment
• Rear panel: BNC and additional video input connectors
• Compliance: FCC Class B computing device (CFR Part 15, Subpart J), UL Listed TV Monitor E44404
• Rated for commercial use only
• Made in Japan — manufactured May 1991
• Includes: AC power cord (3-prong)

Applications

The Sanyo VM-4509 belongs to a class of compact monochrome CRT monitors that were widely used in commercial and light-industrial settings during the late 1980s and early 1990s. Their typical applications included security and surveillance systems, point-of-sale terminal displays, industrial machine interfaces, broadcast production monitoring, and general video signal display. The dual AC/DC power capability made units like this particularly practical for mobile, vehicle-mounted, or off-grid commercial deployments — for example, in broadcast vans, cable-access operations, or field security setups. The 9-inch form factor was a common choice where desk or rack space was limited. These monitors accepted standard composite video signals and were built to the FCC Class B standard, qualifying them for use in computing and office environments. Today this type of small monochrome CRT monitor is sought by collectors of vintage video and broadcast equipment, retro computing enthusiasts, and anyone maintaining or restoring period-accurate video systems from that era.