VINTAGE HALLICRAFTERS HC-1 TESTER?? Classic Vintage Test Equipment – Ham Radio Collectible?? This listing is for a Vintage Hallicrafters HC-1 Capacitance & Resistance Tester, a classic piece of mid-century electronic test gear. Features & Details. ? Hallicrafters HC-1 – Capacitance & Resistance Bridge Tester. ? Classic 1950s-60s design – sought after by collectors. ? Uses one 12AU7 vacuum tube (included). ?? Large easy-to-read meter dial. ?? Ideal for restoration, display, or parts. ?? Some wear from age (see photos). Ham radio enthusiasts? Vintage electronics collectors? Technicians seeking authentic test gear? DIY hobbyists wanting a restoration project.