290EX

Power Transformers Overview

The Hammond Manufacturing 290EX is a laminated core power transformer designed for chassis mounting in tube guitar amplifier applications. It features a single primary winding rated at 120V AC and dual secondary windings providing 660V AC center-tapped and 6.5V AC outputs. The component supports a secondary current rating of 276mA for the high voltage section and 3.15A for the low voltage section, operating at a frequency of 60Hz.

Power Transformers Feature Summary

• Engineered specifically as a replacement power transformer for Fender guitar amplifiers within the 290 series lineup.
• Utilizes a laminated core construction with wire lead termination for secure chassis installation.

Power Transformers Applications

• Replacement power supply for Fender tube guitar amplifiers
• Custom tube audio amplifier builds requiring specific vintage specifications
• Industrial control applications compatible with 120VAC input

Power Transformers Procurement Notes

Verify that the target amplifier circuit matches the 660V CT and 6.5V secondary requirements before procurement. Confirm physical chassis dimensions accommodate the transformer's footprint. Ensure the existing wiring harness supports the wire lead termination style to prevent modification issues during installation.

Power Transformers Selection Notes

Select this model when replacing a failed unit in a Fender amplifier design that requires the specific 290 series electrical characteristics. Consider the 290TX or 291EX only if the application demands different voltage or current ratings, as these variants serve distinct amplifier configurations within the same product family.

Power Transformers Part Context

This component belongs to the Hammond 290 series, a collection of power transformers widely used in the musical instrument industry. The series provides standardized replacements for classic American tube amplifier designs, ensuring consistent performance and reliability for audio equipment manufacturers and repair technicians.

Power Transformers Replacement Considerations

The 290EX serves as a direct replacement for original equipment manufacturer units in compatible Fender amplifiers. Verify that no other series components are required due to specific manufacturing year variations in the target amplifier chassis.