This original 1984 print ad from Teletek promotes their innovative HD/CTC board, combining a hard disk controller and cartridge tape controller on a single circuit board. The ad features a clear image of the green circuit board with numerous black and blue chips, gold edge connectors, and detailed technical specifications. The design highlights the board's capacity to support 5¼" rigid-disk drives with transfer rates up to 15 megabits per second, along with intelligent control via an optional Z-80B CPU.

Teletek's HD/CTC board was designed for the S-100 bus, offering advanced features for its era including up to 16K bytes of on-board EPROM and 8K bytes of RAM, IEEE-696 S-100 standard compliance, and the ability to interface with multiple drive types. This collectible ad is an excellent piece for vintage computing enthusiasts and collectors of early computer hardware advertising, showcasing a pivotal technology from the mid-1980s.