1750T

Overview

The Hammond Manufacturing 1750T is a tube guitar amplifier output transformer designed for AC30 reissue applications. It features a 4,000 C.T. primary impedance and secondary windings of 8 and 16 ohms. The unit supports a power rating of 30W and operates within a frequency range of 70 Hz to 15 kHz. It utilizes wire lead termination and is constructed as an unshielded component intended for chassis mounting in audio signal processing circuits.

Feature Summary

• Designed as a drop-in replacement for original VOX AC30 units
• Maintains physical dimensions similar to factory-original components
• Preserves stock tone characteristics through material and design specifications

Applications

• VOX AC30 guitar amplifier reissues
• Tube guitar amplifier output stages
• Audio signal transformation in vintage-style amplifiers

Procurement Notes

Verify the specific impedance configuration matches the target amplifier circuit requirements before integration. Confirm that the wire lead termination style is compatible with existing PCB or point-to-point wiring layouts. Ensure the chassis mounting provisions align with the enclosure design constraints.

Selection Notes

Select this component when replacing failed output transformers in VOX AC30-style amplifiers requiring a 4kCT primary. Consider the 30W power handling capacity relative to the amplifier's output stage capabilities. Evaluate the unshielded construction against potential electromagnetic interference concerns in dense chassis environments.

Part Context

This part belongs to the Hammond 1750 Series, which specializes in tube application power transformers for guitar amplifiers. The series focuses on providing replacements that mimic original factory units in appearance and electrical performance to preserve authentic tonal qualities.

Replacement Considerations

Direct substitute for original VOX AC30 output transformers. Verify compatibility with existing bobbin and paper winding structures if performing manual rewinding or inspection.