125BSE

Description：XFMR 2.5K-10K / 4-32 CHAS MNT
Series：125SE
Mfr：Hammond Manufacturing
Package：Bulk

SKU:53b848c01b8f 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-10K / 4-32 CHAS MNT
Series：125SE
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Chassis Mount
Size / Dimension：3.250" L x 1.630" W (82.55mm x 41.40mm)
Height - Seated (Max)：2.000" (50.80mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：2.5k ~ 10k
Impedance - Secondary (Ohms)：4 ~ 32
DC Resistance (DCR) - Primary：-
DC Resistance (DCR) - Secondary：-
Transformer Type：General Purpose
Frequency Range：100Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：5W
Operating Temperature：-
Approval Agency：-

Download product information

125BSE

Overview

The Hammond Manufacturing 125BSE is a universal single-ended tube output audio transformer designed for chassis mounting. It features a primary impedance range of 2.5k to 10k ohms and secondary options of 4, 8, 16, or 32 ohms. The unit supports a power rating of 5 watts with a maximum DC current of 45mA. Frequency response spans from 100Hz to 15kHz, and the inductance is specified at 4.5H. Physical dimensions are approximately 82.6mm x 41.4mm x 50.8mm.

Feature Summary

Universal single-ended tube output configuration
Multiple primary and secondary impedance selections
Chassis mount construction

Applications

Single-ended tube amplifier output stages
Audio signal transformation in vintage equipment restoration
Custom audio circuit design requiring specific impedance matching

Procurement Notes

Verify the specific primary and secondary impedance combination required for your circuit design before ordering, as the part number may not specify the exact tap configuration without additional documentation. Confirm physical clearance requirements against the stated dimensions. Ensure compatibility with the intended tube plate current limits.

Selection Notes

Select this component when a universal single-ended tube output transformer is needed with flexible impedance matching options. Consider the frequency response range and power handling capabilities relative to the target audio application. Verify that the chassis mounting style fits the enclosure design constraints.

Part Context

This audio transformer belongs to Hammond Manufacturing's line of signal transformers. It is engineered for use in vacuum tube audio circuits where impedance matching between the tube plate and speaker load is critical. The design supports various common tube output configurations.

Replacement Considerations

Direct substitutes should match the 5W power rating, 45mA DC current limit, and similar frequency response characteristics. Verify primary and secondary impedance values align with the original circuit requirements to maintain proper tube loading and audio fidelity.

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.