290ACX

Power Transformers Overview

The Hammond Manufacturing 290ACX is a power transformer designed for tube guitar amplifiers, specifically serving as a replacement for Fender models. It features a single primary winding rated at 120V AC and operates at a frequency of 60 Hz. The secondary configuration provides a center-tapped output of 300V at 100 mA. Constructed with a laminated core, this unit utilizes chassis mounting and wire lead termination to facilitate integration into audio equipment enclosures.

Power Transformers Feature Summary

• Designed specifically for tube guitar amplifier applications
• Provides complete line isolation and noise filtering capabilities
• Incorporates a Faraday shield to reduce leakage currents

Power Transformers Applications

• Replacement for Fender Bassman 59 reissue amplifiers
• Tube guitar amplifier power supply circuits
• Audio equipment requiring isolated power transformers

Power Transformers Procurement Notes

Verify the specific voltage requirements of the target amplifier circuit against the 120V primary and 300V secondary ratings. Confirm that the chassis mounting style and wire lead termination are compatible with the existing enclosure design. Ensure the operating frequency matches the local power grid standards to prevent performance issues or damage to the transformer windings.

Power Transformers Selection Notes

Select this component when replacing a failed transformer in vintage-style tube amplifiers. The 290 series offers standardized dimensions and electrical characteristics suitable for common Fender designs. Consider the Faraday shield feature if electromagnetic interference reduction is critical for the audio signal path. Verify physical clearance within the chassis before installation.

Power Transformers Part Context

This part belongs to the Hammond 290 Series, a collection of power transformers widely used in musical instrument amplification. The series includes various configurations tailored for different voltage and current requirements while maintaining consistent mounting footprints. These transformers are recognized for their reliability in high-fidelity audio applications.

Power Transformers Replacement Considerations

Direct substitutes include other Hammond 290 series variants with matching electrical specifications. Ensure any replacement maintains the same primary voltage, secondary voltage, and current ratings to preserve amplifier tone and operation.

Power Transformers FAQ

Does the 290ACX include a Faraday shield?

Yes, the transformer incorporates a Faraday shield to reduce leakage currents and provide line isolation.

What is the primary voltage rating?

The primary winding is rated for 120V AC at 60 Hz.