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Product Detailed Parameters
- Description：AUDIO XFMR 200CT / 3.2 CHAS MNT
- Series：144
- 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)：200CT
- Impedance - Secondary (Ohms)：3.2
- DC Resistance (DCR) - Primary：10Ohm
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Economical Open Type
- Frequency Range：150Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：150mW
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 144B is a chassis-mount audio output transformer designed for push-pull tube output circuits. It features a primary impedance of 5000 ohms center-tapped and secondary windings of 3.2 ohms center-tapped. The unit operates within a frequency range of 60 Hz to 15,000 Hz with a maximum power handling capacity of 10 watts. Constructed with steel laminations and potted in epoxy resin, it provides mechanical stability and environmental protection. The component utilizes a pin-type terminal configuration for circuit integration.
Feature Summary
- Designed specifically for push-pull tube output circuits
- Epoxy resin potting for structural integrity
- Steel lamination core construction
Applications
- Push-pull tube audio amplifier output stages
- Audio signal coupling in vacuum tube equipment
- Replacement in vintage audio restoration projects
Procurement Notes
Verify the specific impedance ratio (5000 CT:3.2 CT) matches the original circuit design requirements. Confirm that the physical mounting dimensions and pinout configuration are compatible with the existing chassis layout. Ensure the 10-watt power rating meets the operational demands of the target application without exceeding thermal limits.
Selection Notes
Select this component when replacing failed transformers in tube-based audio amplifiers requiring a 5000-ohm primary impedance. Consider the physical size constraints of the chassis mount installation. Evaluate the need for epoxy potting if vibration resistance or moisture protection is required in the operating environment.
Part Context
This component belongs to the Hammond 143-146 series of audio transformers. It serves as a specialized passive component for analog audio electronics, distinct from general-purpose power transformers. The product line focuses on high-fidelity audio applications utilizing vacuum tube technology.
Replacement Considerations
Ensure the replacement unit maintains the exact 5000 CT:3.2 CT impedance ratio to preserve amplifier performance. Verify compatibility with the existing mounting hardware and terminal connections.
