290CAX

Power Transformers Overview

The Hammond Manufacturing 290CAX is a power transformer designed for tube guitar amplifier applications, specifically serving as a replacement for Fender models. It features a single primary winding rated for 115 VAC input and triple secondary windings providing high voltage plate and filament outputs. The primary high voltage output is 630V or 550V center-tapped at 115 mA. Additional secondary outputs include low voltage filaments of 6.3V at 4A and 5V at 3A. The unit utilizes chassis mounting with wire lead termination.

Power Transformers Feature Summary

• Designed as a direct replacement for specific Fender guitar amplifier power transformers
• Provides multiple secondary voltage outputs for tube plate and filament requirements
• Constructed with laminated core technology for standard industrial control applications

Power Transformers Applications

• Replacement power supply for Fender Bassman 59* (Reissue) amplifiers
• Tube guitar amplifier restoration projects requiring specific voltage taps
• Industrial control circuits requiring isolated AC power conversion

Power Transformers Procurement Notes

Verify the exact secondary voltage configuration required by the target equipment before procurement. Confirm that the 630V/550Vct specification matches the original transformer's output to ensure proper biasing and operation. Check physical dimensions and mounting hole patterns to guarantee compatibility with the existing chassis enclosure. Ensure wire lead lengths are sufficient for the intended installation layout.

Power Transformers Selection Notes

Select this component when a direct functional equivalent for vintage-style tube amplifiers is needed. Compare the current ratings of the filament windings against the total load of the vacuum tubes in the circuit. Ensure the input voltage rating aligns with the local mains frequency and voltage standards. Consider the physical size constraints if replacing an older model with different dimensional tolerances.

Power Transformers Part Context

This part belongs to the Hammond 290 series, which specializes in power transformers for audio and tube applications. The series includes various configurations tailored for different amplifier brands and power levels. The 290CAX represents a specific variant optimized for lower current high-voltage requirements compared to higher-power models in the same family.