DM160 Mullard

Description

The DM160 Mullard Indicator Tube is a miniature tuning and signal-strength display tube designed for visual feedback in vintage and custom-built electronics. Developed in the 1960s by Mullard, this subminiature cold-cathode display tube features a striking green glow when active, making it both functional and visually appealing. Its low operating voltage, compact size, and long service life have earned it a loyal following among enthusiasts and designers of retro or analog-inspired equipment.

Typically used as a level indicator, logic probe, or status display, the DM160 is well-suited for applications that benefit from analog signal visualization. Its efficient cold-cathode operation means that the tube lights up in response to a control voltage, allowing it to display signal activity or switch states with almost no heat generation. In hi-fi and lab gear, the DM160 adds a distinctive visual touch that evokes mid-century design aesthetics.

Mullard’s build quality ensures consistent performance, and the tube’s robust glass envelope helps protect it against vibration and handling stress. Because of its small footprint, the DM160 is perfect for compact circuits where traditional display tubes would be impractical. Whether mounted vertically or horizontally, it integrates easily into both restoration projects and new designs.

In modern applications, builders use the DM160 as a status LED replacement, Nixie-style display, or accent light in audio and radio gear. Its vintage charm, combined with efficient function, makes it a go-to choice for DIYers, modders, and engineers seeking both style and substance.

If you’re building a visual element into your tube-based setup, or restoring vintage gear that originally used one, the DM160 Mullard Indicator Tube offers reliability, simplicity, and timeless appeal—making it a rare but valuable addition to any analog system.