124D

Description：XFMR 7KCT / 15.8KCT CHAS MNT
Series：124
Mfr：Hammond Manufacturing
Package：Bulk

SKU:2c7144d69587 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：XFMR 7KCT / 15.8KCT CHAS MNT
Series：124
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Chassis Mount
Size / Dimension：2.810" L x 1.460" W (71.37mm x 37.08mm)
Height - Seated (Max)：1.680" (42.67mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：01:01.5
Impedance - Primary (Ohms)：7kCT
Impedance - Secondary (Ohms)：15.8kCT
DC Resistance (DCR) - Primary：218Ohm, 236Ohm
DC Resistance (DCR) - Secondary：297Ohm, 394Ohm
Transformer Type：Tube Driver and Speaker Matching
Frequency Range：150Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：500Vrms
Insertion Loss：-
Return Loss：-
Power Level：5W
Operating Temperature：-
Approval Agency：-

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124D

Overview

The Hammond Manufacturing 124D is an audio transformer designed for tube driver interstage applications. It features a primary impedance of 7k CT and a secondary impedance of 15.8k CT, with a turns ratio of 1:1.49. Rated at 5 watts, this component operates within a frequency range of 150Hz to 15kHz. Constructed with grain-oriented steel, it supports chassis mounting and is RoHS compliant.

Feature Summary

Designed specifically for push-pull circuits and phase inverter tube driver applications
Utilizes grain-oriented steel construction for signal integrity
Supports chassis mounting for secure installation

Applications

Push-pull tube amplifier circuits
Phase inverter tube driver stages
General purpose tube driver interstage coupling

Procurement Notes

Verify the specific impedance configuration matches the circuit design requirements before procurement. Confirm that the application utilizes push-pull topology, as single-ended use is explicitly prohibited. Ensure chassis mounting provisions are available in the target enclosure. Check RoHS compliance status if required by project specifications. Validate power handling capabilities against actual signal levels.

Selection Notes

Select this component only when push-pull tube driver functionality is required. The fixed impedance ratio suits specific interstage coupling needs. Consider physical dimensions for chassis integration. Evaluate thermal management for continuous operation. Single-ended designs require alternative transformer types.

Part Context

This part belongs to the Hammond Manufacturing audio transformer family. It serves as a specialized interstage coupling device for vacuum tube electronics. The design focuses on maintaining signal fidelity in high-fidelity audio amplification systems. It represents a standard solution for vintage and modern tube amplifier reconstruction projects.

Replacement Considerations

No public confirmed substitute part numbers are documented. Verify compatibility with existing circuit board layouts or chassis cutouts. Ensure replacement units match the original impedance specifications exactly.

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.