1750A

Overview

The Hammond Manufacturing 1750A is a tube guitar amplifier output transformer designed for push-pull circuits. It features a primary impedance of 22,800 ohms and a secondary impedance of 8 ohms. The unit supports a power level of 3.5W with a frequency response of ±1dB across the 70Hz to 15kHz range. It utilizes wire leads for connection and employs flange mount chassis mounting. The physical dimensions are 2.000 inches in length by 1.440 inches in width (50.80mm x 36.58mm).

Feature Summary

• Designed specifically for general-purpose use and replacement in push-pull tube audio output circuits.
• Constructed with heavy-duty Al-Si-Cu aluminum alloy providing robust mechanical durability.
• Engineered for high impact resistance and environmental sealing capabilities.

Applications

• Tube guitar amplifier output stages
• Push-pull tube audio circuit replacements
• General-purpose tube amplifier repair

Procurement Notes

Verify that the replacement transformer matches the original primary impedance of 22,800 ohms and secondary impedance of 8 ohms. Confirm the power rating requirement aligns with the 3.5W specification. Ensure the mounting style corresponds to the flange mount design with wire leads. Check dimensional compatibility within the existing chassis enclosure to guarantee proper fitment during installation.

Selection Notes

Select this component when replacing failed output transformers in Fender-style or similar tube guitar amplifiers requiring an 8-ohm secondary load. The 22,800-ohm primary impedance must match the specific tube plate requirements of the circuit. Consider the 3.5W power handling capacity relative to the amplifier's output stage. The chassis mount form factor with wire leads dictates the available space and wiring configuration within the equipment.

Part Context

This part belongs to the Hammond Manufacturing Tube Guitar Amplifier Output Transformers series. It serves as a specialized audio component for vintage and modern tube-based musical instrument amplification systems. The product line focuses on reliable replacement parts for maintaining the tonal characteristics and electrical performance of classic tube amplifier designs.

Replacement Considerations

Direct substitutes include other Hammond 1750 series variants if impedance or power ratings differ. Verify cross-compatibility with specific Fender amplifier models requiring identical 22,800-ohm primary and 8-ohm secondary specifications before substitution.

FAQ

What is the primary impedance of the 1750A transformer?

The primary impedance is 22,800 ohms.

Does this transformer support push-pull configurations?

Yes, it is designed for general-purpose use and replacement in push-pull tube output circuits.