290MAEX

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

SKU:374ff859deac Category: Power Transformers Brand: Hammond Manufacturing

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

290MAEX 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 290MAEX

Description：PWR XFMR CHAS MT
Series：290
Mfr：Hammond Manufacturing
Package：Bulk
Type：-
Voltage - Primary：100V, 120V, 220V, 240V
Voltage - Secondary (Full Load)：690V, 625V, 6.3V, 5V
Current - Output (Max)：150mA, 150mA, 5A, 3A
Primary Winding(s)：Dual, Multiple Taps
Secondary Winding(s)：Four
Center Tap：Yes
Power - Max：-
Mounting Type：Chassis Mount
Termination Style：Wire Leads
Size / Dimension：114.30mm L x 79.50mm W
Height - Seated (Max)：101.60mm
Voltage - Isolation：2500Vrms
Weight：-

Power Transformers datasheet and documents for 290MAEX

290MAEX

Power Transformers Overview

The Hammond Manufacturing 290MAEX is a power transformer designed for tube guitar amplifier applications, specifically serving as a replacement for Marshall JTM 45-50 models. It features a dual primary winding configuration supporting 100V and 240V input voltages. The secondary circuit provides a high-voltage center-tapped output of 690V at 92mA, alongside auxiliary windings delivering 625VCT at 230mA. Constructed with a laminated core and chassis mount style, it utilizes wire leads for termination.

Power Transformers Feature Summary

Engineered as a direct replacement for Marshall JTM 45-50 guitar amplifiers
Supports dual primary voltage inputs of 100V and 240V
Features a laminated core construction for stable power delivery

Power Transformers Applications

Replacement power supply for Marshall JTM 45-50 tube amplifiers
Custom tube guitar amplifier builds requiring specific voltage ratings
Audio equipment restoration projects

Power Transformers Procurement Notes

Verify the specific voltage requirements of the target amplifier circuit against the transformer's dual primary specifications before installation. Ensure the chassis mounting dimensions and lead wire lengths are compatible with the existing enclosure layout. Confirm that the secondary current ratings meet the thermal and electrical demands of the vacuum tubes in the design.

Power Transformers Selection Notes

Select this component when replacing a failed unit in a Marshall JTM 45-50 amplifier to maintain original tonal characteristics. Consider the physical size constraints of the chassis, as chassis-mount transformers require adequate clearance. Evaluate the need for dual primary flexibility if the operating region voltage differs from the standard configuration.

Power Transformers Part Context

This part belongs to the Hammond 290 series, which specializes in power transformers for tube audio applications. The series includes various models tailored for different amplifier brands and power levels, providing standardized replacements for vintage and modern tube gear.