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Product Detailed Parameters
- Description：Tools/Equipment/Hardware
- Series：1750
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：4:01
- Impedance - Primary (Ohms)：8k
- Impedance - Secondary (Ohms)：4, 8, 16
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1751M is an audio output transformer designed for general-purpose and replacement use in push-pull tube output circuits. It features an 8000 Ohm primary winding and secondary windings available in 4, 8, and 16 Ohm configurations. The unit is rated for 15W power handling capacity.
Feature Summary
- Designed specifically for push-pull tube output circuits
- Provides multiple secondary impedance options
Applications
- Push-pull tube amplifier output stages
- Audio equipment repair and restoration
- General-purpose audio signal transformation
Procurement Notes
Verify the specific secondary impedance requirement (4, 8, or 16 Ohm) against the target circuit design before procurement. Confirm that the 8000 Ohm primary impedance matches the vacuum tube plate-to-plate load requirements. Ensure the 15W power rating exceeds the maximum expected output of the application to prevent thermal failure.
Selection Notes
Select this component when replacing transformers in vintage or modern tube amplifiers requiring a 8k:4/8/16 Ohm ratio. Evaluate the physical mounting constraints and terminal configuration compatibility with the existing chassis layout. Consider the 15W power rating as the upper limit for continuous operation in the intended audio frequency range.
Part Context
This component belongs to the Hammond Manufacturing line of audio and signal transformers. It serves as a specialized passive component for coupling audio signals between vacuum tube stages and loudspeakers or subsequent amplifier stages in high-fidelity audio systems.
Replacement Considerations
Direct substitutes include other Hammond models within the 1750 series that share identical electrical specifications. Verify pinout compatibility and physical dimensions to ensure seamless integration into existing enclosures without modification.
