107B-BULK

Description：TRANSFORMER
Series：107
Mfr：Hammond Manufacturing
Package：Bulk

SKU:3031f0154b40 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：TRANSFORMER
Series：107
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Through Hole
Size / Dimension：0.566" L x 0.630" W (14.38mm x 16.00mm)
Height - Seated (Max)：0.598" (15.19mm)
Termination Style：PC Pin
Turns Ratio - Primary:Secondary：3.53:1
Impedance - Primary (Ohms)：150CT
Impedance - Secondary (Ohms)：12
DC Resistance (DCR) - Primary：20Ohm
DC Resistance (DCR) - Secondary：2Ohm
Transformer Type：Miniature Epoxy Potted
Frequency Range：300Hz ~ 50kHz
Frequency Response：±1.5dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：150mW
Operating Temperature：-40°C ~ 105°C
Approval Agency：-

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107B-BULK

Overview

The Hammond Manufacturing 107B-BULK is an audio transformer designed for general-purpose use and replacement in push-pull tube output circuits. It features high-quality magnetics suitable for tube applications such as hi-fi systems. The component is epoxy potted in a molded case with pin-type, printed circuit board mount connections. It serves as an audio input, line matching, isolation, or output transformer.

Feature Summary

Designed for push-pull tube output circuits
Epoxy potted construction
PCB pin mounting

Applications

Hi-fi tube amplifier output stages
Audio input transformers
Line matching applications
Signal isolation

Procurement Notes

Verify the specific bulk packaging configuration against the manufacturer's current documentation to ensure compatibility with automated assembly processes. Confirm that the pin dimensions and spacing match the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when designing or repairing tube-based audio equipment requiring matched output transformation. Ensure the application voltage and power handling capabilities align with the transformer's rated specifications for the intended signal path.

Part Context

This part belongs to Hammond Manufacturing's range of audio and signal transformers. It is specifically engineered for vintage and modern tube amplifier restoration, providing necessary impedance matching and isolation between amplifier stages.

Replacement Considerations

Consult official Hammond Manufacturing substitution guides for compatible alternatives. Verify electrical parameters and physical dimensions before integrating any substitute components into existing tube amplifier designs.

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.