144I

Overview

The Hammond Manufacturing 144I is an audio transformer designed for chassis mounting. It belongs to the 143-146 Series and functions as an output transformer. The component features a primary impedance of 600 ohms with a center tap. The secondary side provides two distinct taps: one at 150 ohms and another at 150 ohms, also with a center tap configuration. This specific winding arrangement supports balanced audio signal transmission in professional audio applications requiring precise impedance matching between source and load components.

Feature Summary

• Chassis mount construction for secure installation
• Output transformer functionality for audio signals
• Center-tapped primary winding design
• Dual center-tapped secondary windings

Applications

• Professional audio equipment output stages
• Balanced line driver circuits
• Audio mixing console output sections
• Amplifier interstage coupling

Procurement Notes

Verify the specific impedance ratio and physical mounting hole pattern against your circuit schematic and chassis layout before ordering. Confirm that the center-tap requirements match your existing board design. Ensure the thermal rating is sufficient for your continuous power dissipation needs. Check for any updated revision numbers from Hammond Manufacturing that may affect pinout or mechanical dimensions.

Selection Notes

Select this model when a 600-ohm primary with dual 150-ohm center-tapped secondaries is required. Consider the physical size constraints of the chassis mount style. Evaluate if the frequency response characteristics meet the bandwidth requirements of the audio application. Compare against other series members if different impedance ratios are needed.

Part Context

This component is part of the Hammond 143-146 Series of audio transformers. These units are generally used in legacy and modern audio systems where galvanic isolation and impedance transformation are necessary. The series offers various impedance combinations to suit different audio interface standards.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Hammond Manufacturing directly for cross-reference information or equivalent models with compatible electrical specifications.