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Product Detailed Parameters
- Description：AUDIO XFMR 3.2 / 25V CHAS MNT
- Series：117
- 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：Solder Lug
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：3.2
- Impedance - Secondary (Ohms)：25V
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Sound Distribution
- Frequency Range：100Hz ~ 9kHz
- Frequency Response：1dB
- Voltage - Isolation：-
- Insertion Loss：2dB
- Return Loss：-
- Power Level：4W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 117J4 is a line matching audio transformer designed for sound distribution systems. It features a 3.2-ohm primary impedance and supports 25-volt and 4-watt operation. The unit operates within a frequency range of 100Hz to 9kHz and utilizes chassis mounting with quick connect terminals. Its physical dimensions are 102.4 mm in length, 57.2 mm in width, and 66.8 mm in height, weighing 1.043 kg.
Feature Summary
- Designed for general-purpose use and replacement in push-pull tube output circuits
- Provides high-quality magnetics suitable for tube applications such as hi-fi
- Facilitates line matching for audio signal distribution
Applications
- Push-pull tube output circuit replacement
- Hi-fi audio system integration
- Sound distribution line matching
Procurement Notes
Verify the specific terminal configuration against the official datasheet before procurement. Confirm that the 3.2-ohm primary impedance aligns with the existing circuit requirements. Ensure the chassis mounting style fits the designated enclosure space. Cross-reference the 100Hz to 9kHz frequency response with the application's audio bandwidth needs to guarantee performance compatibility.
Selection Notes
Select this component when a 3.2-ohm primary impedance is required for tube-based audio circuits. It is appropriate for systems utilizing 25-volt lines with low power demands around 4 watts. Consider the chassis mount form factor and quick connect termination style for installation convenience. Evaluate the physical dimensions to ensure adequate clearance within the equipment housing.
Part Context
This component belongs to the Hammond 117 series, which specializes in audio and signal transformers. The series includes various models tailored for different impedance and power ratings. The 117J4 specifically addresses the needs of vintage or specialized tube amplifier designs requiring precise line matching capabilities.
Replacement Considerations
- 117E8
FAQ
What is the primary impedance of the 117J4?
The primary impedance is 3.2 ohms.
Does the 117J4 support tube amplifier circuits?
Yes, it is designed for general-purpose use and replacement in push-pull tube output circuits.
