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Product Detailed Parameters
- Description：XFMR 1.2K-25K / 1.5-15 CHAS MNT
- Series：125
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：2.810" L x 1.500" W (71.37mm x 38.10mm)
- Height - Seated (Max)：1.690" (42.93mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：1.2k ~ 25k
- Impedance - Secondary (Ohms)：1.5 ~ 15
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：General Purpose
- Frequency Range：150Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：8W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 125C is an audio transformer designed for universal push-pull tube output applications. It delivers an 8-watt power rating and operates within a frequency range of 150 Hz to 15 kHz. The unit features a single channel with unshielded construction. Primary coil impedance is specified at 25 kOhms, while the secondary coil impedance is 15 Ohms. The primary inductance measures 14.94 H. Physical dimensions are 2.06 inches in length, 1.25 inches in width, and 1.19 inches in height. The component utilizes terminal type termination.
Feature Summary
- Designed for universal push-pull tube output configurations
- Provides 8 watts of power handling capability
- Features unshielded construction for signal transmission
Applications
- Tube amplifier output stages
- Audio signal processing circuits
- Push-pull valve equipment integration
Procurement Notes
Verify the specific manufacturer part number against official Hammond Manufacturing documentation to ensure compatibility with your circuit design. Confirm that the 8-watt rating and impedance values align with your system requirements. Check current availability status through authorized distributors as supply levels may fluctuate. Ensure compliance with relevant safety and environmental standards before final procurement.
Selection Notes
Select this component when designing audio systems requiring push-pull tube output transformation. Verify that the 25 kOhm primary and 15 Ohm secondary impedances match your transformer coupling needs. Consider the physical footprint of 2.06 x 1.25 x 1.19 inches for enclosure planning. Ensure the 150 Hz to 15 kHz frequency response covers your operational bandwidth requirements.
Part Context
This component belongs to the Hammond Manufacturing audio transformer series, specifically engineered for vacuum tube amplifier applications. It serves as a critical interface between tube output stages and speaker loads or subsequent circuitry. The product line emphasizes reliability in analog audio signal paths, supporting both professional and hobbyist audio engineering projects requiring precise impedance matching.
Replacement Considerations
Consult Hammond Manufacturing technical literature for direct cross-reference models. Verify electrical parameters including impedance ratios and power ratings before substituting. Ensure mechanical mounting dimensions remain compatible with existing chassis designs.
