1760J

Description：XFMR 4KCT / 4, 8, 16 CHAS MNT
Series：1760
Mfr：Hammond Manufacturing
Package：Box

SKU:c66212880645 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：XFMR 4KCT / 4, 8, 16 CHAS MNT
Series：1760
Mfr：Hammond Manufacturing
Package：Box
Mounting Type：Chassis Mount
Size / Dimension：4.076" L x 3.170" W (103.53mm x 80.52mm)
Height - Seated (Max)：3.513" (89.23mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：31.11:1
Impedance - Primary (Ohms)：4kCT
Impedance - Secondary (Ohms)：4, 8, 16
DC Resistance (DCR) - Primary：185Ohm
DC Resistance (DCR) - Secondary：400mOhm
Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
Frequency Range：70Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：35W
Operating Temperature：-
Approval Agency：-

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1760J

Overview

The Hammond Manufacturing 1760J is an audio output transformer designed for push-pull tube circuits. It features a primary impedance of 4,000 ohms center-tapped and secondary options of 4, 8, and 16 ohms. Rated at 40 watts, this component serves as a drop-in replacement for original units in specific guitar amplifier models.

Feature Summary

Constructed to resemble original factory units where possible
Designed for direct drop-in replacement applications
Utilizes high-quality magnetics suitable for tube equipment

Applications

Fender Bandmaster tube amplifiers
Fender Tremolux tube amplifiers
General-purpose push-pull tube output circuits

Procurement Notes

Verify physical dimensions and mounting hole patterns against the target amplifier chassis before purchase. Confirm that the 40-watt power rating matches the original design specifications. Ensure the multi-tap secondary configuration aligns with the existing speaker cabinet wiring requirements to prevent impedance mismatch issues.

Selection Notes

Select this model specifically for Fender Bandmaster and Tremolux replacements due to its exact impedance matching. The 4,000-ohm center-tapped primary is critical for proper tube operation. Consider the 40-watt thermal capacity when evaluating long-term reliability in high-output scenarios compared to lower-rated alternatives.

Part Context

This transformer belongs to Hammond Manufacturing's line of replacement audio components for vintage tube gear. It addresses the scarcity of original OEM parts by providing functionally equivalent magnetic assemblies. The product supports the maintenance and restoration of classic guitar amplification systems requiring precise electrical characteristics.

Replacement Considerations

Confirmed substitutes include Hammond part numbers associated with Fender Bandmaster and Tremolux replacements. Verify compatibility with specific production years as internal circuit variations may exist between different manufacturing batches of the original amplifiers.

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.