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Product Detailed Parameters
- Description：XFMR 2KCT / 4, 8, 16 CHAS MNT
- Series：1750
- Mfr：Hammond Manufacturing
- Package：Box
- Mounting Type：Chassis Mount
- Size / Dimension：3.750" L x 3.936" W (95.25mm x 99.97mm)
- Height - Seated (Max)：4.623" (117.42mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：11.11:1
- Impedance - Primary (Ohms)：2kCT
- Impedance - Secondary (Ohms)：4, 8, 16
- DC Resistance (DCR) - Primary：25.72Ohm, 12.86Ohm
- DC Resistance (DCR) - Secondary：222mOhm
- Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
- Frequency Range：50Hz ~ 12kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：100W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1750R is an output audio transformer designed for guitar amplifier applications. It features a primary impedance of 2,000 ohms center-tapped and secondary impedances of 4, 8, and 16 ohms. The unit supports a power rating of 100 watts and operates within a frequency range of 70 Hz to 15 kHz. Constructed with wire lead terminations, this single-channel transformer is part of the 1750 series and weighs approximately 3 kg.
Feature Summary
- Designed specifically for high-power guitar amplifier output stages
- Provides multiple secondary impedance options for flexible speaker matching
- Center-tapped primary winding configuration for tube amplifier compatibility
Applications
- Guitar amplifier output stage construction
- Audio signal transformation in tube-based amplifiers
- Replacement for Yorkville or Traynor amplifier models
Procurement Notes
Verify that the required primary impedance matches the 2,000 ohm center-tapped specification exactly. Confirm that the amplifier circuit supports the 100-watt power rating to ensure safe operation. Check that the physical dimensions and weight are compatible with the intended chassis enclosure. Ensure the wire lead termination style aligns with the existing wiring harness or solder points in the target equipment design.
Selection Notes
Select this component when a 2,000 ohm center-tapped primary is required for tube amplifier designs. Choose the 1750R over other series members if the specific 4, 8, and 16 ohm secondary combination is necessary. Consider the 3 kg weight when designing mounting structures. This model is suitable for applications requiring robust power handling capabilities up to 100 watts.
Part Context
The 1750R belongs to the Hammond 1750 series of audio and signal transformers. This series includes variants such as the 1750D and 1750KA, which differ primarily in primary impedance values and specific application tuning. The 1750R is distinct within the family due to its 2,000 ohm center-tapped primary specification, catering to specific tube amplifier architectures.
