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Product Detailed Parameters
- Description：AUDIO XFMR 150 CHAS MNT
- Series：1140
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：1.250" Dia (31.75mm)
- Height - Seated (Max)：-
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：1:01
- Impedance - Primary (Ohms)：150
- Impedance - Secondary (Ohms)：-
- DC Resistance (DCR) - Primary：48Ohm
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Impedance Matching
- Frequency Range：20Hz ~ 20kHz
- Frequency Response：-
- Voltage - Isolation：500Vrms
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1140-MS-B is a studio-grade audio transformer designed for microphone splitting and impedance matching applications. It features a chassis mount configuration with an impedance ratio of 150:150:150 ohms. The component provides electrical isolation for standard 150Ω microphone sources, facilitating connection to higher impedance pre-amplifiers such as 1000Ω inputs. It operates within a frequency range of 20Hz to 20kHz, ensuring accurate signal reproduction for professional audio environments.
Feature Summary
- Provides balanced microphone output signal from unbalanced line level signals
- Designed with nickel alloy cores for high performance
- Offers electrical isolation for standard microphone sources
Applications
- Microphone splitting in professional audio setups
- Impedance matching between microphones and pre-amplifiers
- Signal isolation for long cable runs with minimal high-frequency loss
Procurement Notes
Verify the specific impedance configuration required for your application, as this model supports a 150:150:150 ohm ratio. Confirm that the chassis mount form factor fits your equipment enclosure dimensions. Ensure compatibility with standard 150Ω microphone sources before procurement to guarantee proper signal transfer and isolation performance.
Selection Notes
Select this component when studio-grade isolation and precise impedance matching are required for microphone signals. It is suitable for applications involving connection to 1000Ω pre-amplifier inputs or balancing unbalanced line-level signals. Consider the chassis mount requirement and ensure the physical dimensions align with your installation space constraints.
Part Context
This part belongs to the 1140 Series of Studio Grade Impedance Matching Transformers by Hammond Manufacturing. The series includes variants like the 1140-MS-A, which shares similar mounting characteristics but may differ in specific impedance ratios. These transformers are engineered for professional audio applications requiring reliable signal integrity and isolation.
Replacement Considerations
The Hammond Manufacturing 1140-MS-A is a related variant within the same product family. Verify if the specific impedance ratio requirements of your application can be met by the MS-A model before considering it as a substitute.
