1750Q

Description：XFMR 7.371KCT / 4, 8, 16 CHAS MT
Series：1750
Mfr：Hammond Manufacturing
Package：Box

SKU:b16a9f610173 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：XFMR 7.371KCT / 4, 8, 16 CHAS MT
Series：1750
Mfr：Hammond Manufacturing
Package：Box
Mounting Type：Chassis Mount
Size / Dimension：3.125" L x 3.280" W (79.38mm x 83.31mm)
Height - Seated (Max)：3.813" (96.85mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：21.46:1
Impedance - Primary (Ohms)：7.371kCT
Impedance - Secondary (Ohms)：4, 8, 16
DC Resistance (DCR) - Primary：81.61Ohm, 78.63Ohm
DC Resistance (DCR) - Secondary：120mOhm, 190mOhm, 270mOhm
Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
Frequency Range：50Hz ~ 12kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：50W
Operating Temperature：-
Approval Agency：-

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1750Q

Overview

The Hammond Manufacturing 1750Q is a tube guitar amplifier output transformer designed for high-power audio applications. It features a primary impedance of 7,371 ohms center-tapped and secondary options of 4, 8, and 16 ohms. The unit supports a power rating of 50W with a frequency range of 70 Hz to 15 kHz. Constructed with wire leads, it serves as a drop-in replacement for original factory units like the Marshall JTM 45.

Feature Summary

Designed as a direct drop-in replacement for original factory output transformers in vintage guitar amplifiers
Constructed to replicate the physical appearance and mounting style of original factory components
Supports multiple secondary impedances (4, 8, and 16 ohms) for versatile speaker configuration compatibility

Applications

Replacement in Marshall JTM 45 guitar amplifiers
Restoration of vintage tube guitar amplifier circuits
High-power audio output stage construction

Procurement Notes

Verify that the specific application requires a 7,371 ohm center-tapped primary impedance and 50W power rating. Confirm that the multi-tap secondary configuration (4/8/16 ohms) matches the target amplifier's speaker jack requirements. Ensure the physical dimensions and lead layout are compatible with the existing chassis mounting points before procurement.

Selection Notes

Select this component when replacing failed output transformers in high-power tube guitar amplifiers requiring a 7,371 ohm primary impedance. It is suitable for designs needing flexible secondary impedance matching via 4, 8, and 16 ohm taps. Consider its physical form factor if space constraints exist within the amplifier chassis.

Part Context

This component belongs to the Hammond 1750 series of audio and signal transformers, which are specialized for tube-based audio equipment. The series includes various models tailored for different power levels and impedance requirements, with the 1750Q specifically targeting high-wattage guitar amplifier replacements.