1628SEA

Overview

The Hammond Manufacturing 1628SEA is a single-ended audio output transformer designed for tube amplifier applications. It features a primary impedance of 5000 ohms and supports secondary impedances of 4, 8, and 16 ohms. The unit delivers a power rating of 30 watts with a primary current capacity of 120 mA. Operating frequency ranges from 20 Hz to 20 kHz. This component utilizes chassis mounting for secure installation within electrical enclosures.

Feature Summary

• Single-ended topology optimized for tube output circuits
• Multi-tap secondary winding supporting multiple speaker impedances
• Chassis mount construction for stable mechanical integration

Applications

• Single-ended tube audio amplifier output stages
• General-purpose push-pull tube circuit replacement
• Audio equipment repair and restoration projects

Procurement Notes

Verify the specific secondary impedance configuration required for the target application before ordering, as the part supports multiple tap options. Confirm that the chassis mounting dimensions align with the enclosure design. Check manufacturer documentation for detailed electrical specifications and thermal requirements to ensure compatibility with the existing circuit design.

Selection Notes

Select this transformer when a single-ended output stage is required with a 5000-ohm primary impedance. Ensure the system power handling does not exceed 30 watts. Consider the physical size constraints for chassis mounting. Verify that the operating frequency range meets the audio bandwidth requirements of the intended application.

Part Context

This component belongs to the audio transformers category within Hammond Manufacturing's product line. It serves as a specialized passive component for vacuum tube electronics. The design focuses on delivering high-fidelity audio signal transfer in single-ended configurations, distinguishing it from multi-winding or general-purpose isolation transformers.