144G

Overview

The Hammond Manufacturing 144G is an audio transformer designed for chassis mounting applications. It features a primary impedance of 500 ohms with a center tap and a secondary impedance of 8 ohms, facilitating audio signal matching. The unit operates at a power rating of 150mW and utilizes insulated, color-coded flexible leads with a minimum length of 4 inches. Constructed as an open-type component, it is housed in a small form factor suitable for economical integration into audio circuits requiring specific impedance transformation.

Feature Summary

• Chassis mount design with horizontal bracket configuration
• Audio signal matching capability via specified impedance ratios
• Insulated color-coded flexible leads for simplified wiring

Applications

• Audio equipment internal signal coupling
• Impedance matching between audio stages
• Chassis-mounted audio circuit integration

Procurement Notes

Verify the exact datasheet version to confirm lead lengths and mounting hole specifications. Ensure the application environment does not require shielding, as this model is unshielded. Cross-reference the center-tap configuration requirements against the system design before procurement to ensure compatibility with the intended audio circuit topology.

Selection Notes

Select this component when a 500-ohm center-tapped primary to 8-ohm secondary transformation is required for low-power audio signals. Consider the open construction and lack of shielding if electromagnetic interference is a concern. Evaluate the 4-inch lead length against panel depth constraints to ensure adequate reach for connections without excessive strain.

Part Context

This component belongs to the Hammond 143-146 series of audio transformers. These units are characterized by their economical design and open construction, targeting cost-sensitive audio applications. The series provides standardized impedance options for common audio interface requirements, serving as a fundamental passive component for signal transfer in vintage or specialized audio hardware.

Replacement Considerations

Direct substitutes within the same series include models 143G, 145G, and 146G, which offer different impedance configurations. Verify that any replacement maintains the 150mW power rating and chassis mounting style to fit existing enclosures without mechanical modification.