125J

Description：XFMR 2.5K 4K / 3.2, 4, 6, 8 CHAS
Series：125
Mfr：Hammond Manufacturing
Package：Bulk

SKU:26609f8bb3f5 Category: Audio 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

Product Detailed Parameters

Description：XFMR 2.5K 4K / 3.2, 4, 6, 8 CHAS
Series：125
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Chassis Mount
Size / Dimension：3.250" L x 1.500" W (82.55mm x 38.10mm)
Height - Seated (Max)：1.940" (49.28mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：2.5k, 4k
Impedance - Secondary (Ohms)：3.2, 4, 6, 8
DC Resistance (DCR) - Primary：-
DC Resistance (DCR) - Secondary：-
Transformer Type：General Purpose
Frequency Range：150Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：8W
Operating Temperature：-
Approval Agency：-

Download product information

125J

Overview

The Hammond Manufacturing 125J is a universal push-pull tube output transformer designed for audio applications. It features a primary impedance of 2.5k ohms and multiple secondary configurations including 4k, 3.2, 4, 6, and 8 ohms. The unit is constructed with a chassis mount design suitable for general purpose or replacement use in push-pull tube output circuits.

Feature Summary

Designed for general purpose or replacement use in push-pull tube output circuits
Universal configuration supporting various impedance requirements
Chassis mount construction for secure installation

Applications

Push-pull tube output circuits
Audio equipment repair and restoration
General purpose audio transformer applications

Procurement Notes

Verify the specific secondary impedance configuration required (3.2, 4, 6, or 8 ohms) as the part number may denote a series or specific variant. Confirm chassis mounting compatibility with existing equipment. Check manufacturer documentation for precise electrical specifications and pinout details to ensure correct integration into the target circuit.

Selection Notes

Select this component when replacing a failed output transformer in vintage or classic tube audio amplifiers. Ensure the primary impedance matches the amplifier's design specifications. Consider the physical dimensions and mounting hole patterns to verify fit within the existing chassis enclosure without modification.

Part Context

This component belongs to Hammond Manufacturing's line of audio transformers, specifically categorized under push-pull tube output types. It serves as a critical element in vacuum tube amplifier stages, facilitating signal transfer between the tubes and the speaker load while providing necessary impedance matching for optimal audio performance.

Replacement Considerations

Direct substitutes include other Hammond models designated for push-pull tube output with identical 2.5k primary impedance. Verify secondary winding options match the original equipment's speaker tap requirements. Cross-reference with vintage amplifier service manuals for approved equivalent part numbers.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.