Overview
The HH Smith 1275-103 insulated binding post is a high-quality vintage electronic connector component designed for vintage radio, audio, test equipment, and communication device applications. This black binding post features a molded Lexan polycarbonate head with a brass tin-plated body, providing reliable insulation and durability for panel-mount installations.
Key Features
- Molded Lexan polycarbonate post head with fluted design for secure grip
- Brass body with tin plating for corrosion resistance
- Molded polycarbonate insulated washers completely insulate post from panel
- Keyed to panel and body to prevent rotation during use
- Accepts multiple connector types: 0.080″ phone tip plugs, spade lugs, banana plugs, alligator clips, and wire
- Mounts in 3/8″ D-hole for secure anti-rotation installation
Technical Specifications
- Manufacturer: Abbatron / HH Smith
- Part Number: 1275-103
- Color: Black
- Post Head Material: Molded Lexan Polycarbonate
- Body Material: Brass with Tin Plating
- Insulated Washers: Molded Polycarbonate
- Mounting Hole Size: 3/8″ D-hole
- Maximum Wire Gauge: #14
- Connector Types Supported: Phone tip plug (0.080″), spade lug (1/4″), banana plug, alligator clip, wire
- Design: Captivated fluted head to prevent loss
Typical Applications
The 1275-103 is ideal for vintage radio restoration, audio equipment connections, laboratory test equipment panel installations, vintage television service and repair, and communication device restoration projects. Its insulated design makes it suitable for low-voltage signal applications where panel isolation is required.
Compatibility & Replacements
Compatible With
- Vintage radio and audio equipment panels
- Test and measurement equipment from mid-20th century
- Vintage television and phone equipment
- Ham radio and amateur radio installations
- Any 3/8″ D-hole panel mounting application
Replaces / Drop-In Replacement For
The 1275-103 (black) is the color variant of the standard 1275 series binding post. The red equivalent is part number 1275-102. Verify specific compatibility with your equipment before ordering.
Works With
- Standard banana plugs and alligator clips
- Phone tip plugs (0.080″ diameter)
- Spade lugs (1/4″ size)
- Direct wire connections (up to #14 gauge)
- Vintage test leads and probes






