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Product Detailed Parameters
- Description：AUDIO XFMR 10K / 2KCT CHAS MNT
- Series：143
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：1.000" L x 0.690" W (25.40mm x 17.53mm)
- Height - Seated (Max)：0.690" (17.53mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：10k
- Impedance - Secondary (Ohms)：2kCT
- DC Resistance (DCR) - Primary：720Ohm
- DC Resistance (DCR) - Secondary：89Ohm
- Transformer Type：Economical Open Type
- Frequency Range：150Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：30mW
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 143N is an audio transformer designed for chassis mounting. It features a driver configuration with a primary impedance of 10,000 Ohms and a secondary impedance of 2,000 Ohms center-tapped (CT). This component belongs to the 143-146 series and is engineered for general-purpose applications, specifically serving as a replacement or primary unit in push-pull tube output circuits.
Feature Summary
- Engineered for use in push-pull tube output circuits
- Chassis mount design for secure installation
- General-purpose audio transformer functionality
Applications
- Push-pull tube output circuits
- Audio equipment repair and replacement
- General-purpose audio signal transformation
Procurement Notes
Verify that the required primary and secondary impedances match the 10,000 Ohm and 2,000 Ohm CT specifications respectively. Confirm the chassis mounting style aligns with the enclosure design. Ensure the application involves push-pull tube circuits, as this model is optimized for that specific topology rather than single-ended configurations.
Selection Notes
Select this model when a 10k:2k CT ratio is required for tube-based audio stages. The chassis mount form factor dictates the physical integration method within the device housing. Consider the 143-146 series context if multiple similar transformers are needed for consistency across a multi-channel system.
Part Context
The 143N is part of the broader 143-146 series from Hammond Manufacturing, which provides various audio transformer options. These components are typically utilized in vintage or specialized modern audio amplifiers where vacuum tubes are employed for signal processing and power output stages.
Replacement Considerations
This transformer serves as a direct replacement for failed units in push-pull tube amplifiers requiring identical electrical characteristics. Verify pinout compatibility and physical dimensions before substitution to ensure proper fitment.
FAQ
What is the primary impedance of the 143N?
The primary impedance is 10,000 Ohms.
Is the 143N suitable for single-ended circuits?
It is designed for push-pull tube output circuits; suitability for single-ended use depends on specific circuit requirements not explicitly defined for this model.
