290CBZ

Description：PWR XFMR CHAS MT
Series：290
Mfr：Hammond Manufacturing
Package：Bulk

SKU:b5a614d23c0d Category: Power Transformers Brand: Hammond Manufacturing

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Product introduction

290CBZ is listed in the Power Transformers range at ChipApex. The manufacturer field lists Hammond Manufacturing. Its product description is PWR XFMR CHAS MT. Review the specifications below when checking this part for your BOM.

Power Transformers specifications for 290CBZ

Description：PWR XFMR CHAS MT
Series：290
Mfr：Hammond Manufacturing
Package：Bulk
Type：-
Voltage - Primary：120V
Voltage - Secondary (Full Load)：650V, 5V, 6.3V
Current - Output (Max)：120mA, 2A, 3A
Primary Winding(s)：Single
Secondary Winding(s)：Triple
Center Tap：Yes
Power - Max：-
Mounting Type：Chassis Mount
Termination Style：Wire Leads
Size / Dimension：79.38mm L x 82.55mm W
Height - Seated (Max)：95.25mm
Voltage - Isolation：-
Weight：-

Power Transformers datasheet and documents for 290CBZ

290CBZ

Power Transformers Overview

The Hammond Manufacturing 290CBZ is a laminated core power transformer designed for chassis mounting in tube guitar amplifiers. It features a single primary winding rated at 120VAC and operates at 50/60 Hz. The secondary configuration provides a center-tapped output of 650VAC at 120mA, along with auxiliary windings of 6.3VAC at 4A and 5VAC at 3A. The unit utilizes wire leads for termination and measures approximately 103.2 mm in length, 87.32 mm in width, and 104.77 mm in height.

Power Transformers Feature Summary

Designed specifically as a replacement power transformer for Fender tube guitar amplifiers
Utilizes a triple secondary winding architecture to supply high voltage and filament power
Constructed with a laminated core for efficient magnetic coupling in audio applications

Power Transformers Applications

Replacement power supply for Fender Bassman 59 reissue amplifiers
Power conversion for vintage-style tube guitar amplifier circuits
Audio equipment requiring specific high-voltage rectification and filament heating

Power Transformers Procurement Notes

Verify the exact current ratings of existing auxiliary windings against the new component specifications before installation. Confirm that the physical dimensions and chassis mounting hole patterns are compatible with the target amplifier enclosure. Ensure the primary voltage rating matches the local mains supply frequency and amplitude to prevent operational failure or safety hazards during deployment.

Power Transformers Selection Notes

Select this model when replacing a failed transformer in Fender amplifiers requiring a 650VCT high-voltage rail. Consider the total secondary current capacity to ensure it meets the bias and heater requirements of the vacuum tubes. Evaluate the physical footprint constraints within the amplifier chassis to guarantee proper fitment alongside other internal components.

Power Transformers Part Context

This component belongs to the Hammond 290 Series, a line of industrial and audio-grade power transformers. The series is widely recognized for its reliability in musical instrument amplification. The 290CBZ variant is distinguished by its specific voltage and current outputs tailored for classic American tube amp designs, ensuring compatibility with original equipment manufacturer specifications.