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Product Detailed Parameters
- Description：XFMR 1.9KCT / 4, 8, 16 CHAS MNT
- Series：1600
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：4.500" L x 3.750" W (114.30mm x 95.25mm)
- Height - Seated (Max)：4.560" (115.82mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：1.9kCT
- Impedance - Secondary (Ohms)：4, 8, 16
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
- Frequency Range：30Hz ~ 30kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：±1dB
- Return Loss：-
- Power Level：120W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1650T is a push-pull tube output transformer designed for high-fidelity audio applications. It features a primary impedance of 1,900 CT with a maximum DC current of 403 mA. The secondary side offers multiple impedance taps at 4, 8, and 16 ohms. Rated for a power level of 120W, this chassis-mount component measures 4.500 inches in length and 3.750 inches in width, with a maximum seated height of 4.560 inches.
Feature Summary
- Designed specifically for push-pull tube output stages in high-fidelity audio equipment
- Provides multiple secondary impedance options to accommodate various speaker configurations
- Constructed for robust chassis mounting in professional audio enclosures
Applications
- High-fidelity vacuum tube amplifier construction
- Push-pull audio output stage implementation
- Professional audio equipment repair and restoration
Procurement Notes
Verify the specific pinout and physical dimensions against your enclosure design before ordering. Confirm that the 120W power rating aligns with your amplifier's thermal management capabilities. Ensure compatibility with your chosen tube types regarding the primary impedance and DC current limits. Check for any available factory modification services if standard mounting does not fit your chassis requirements.
Selection Notes
Select the 1650T when a 1,900 CT primary impedance is required for push-pull tube circuits. Consider this model for applications needing a 120W power handling capacity. Evaluate the physical size constraints, as the unit requires a chassis opening of approximately 4.5 by 3.75 inches. Compare against other Hammond series transformers if different impedance ratios or lower power ratings are sufficient for the design.
Part Context
This component belongs to the Hammond Manufacturing audio transformer lineup, which specializes in components for vintage and modern tube audio gear. The 1650T serves as a critical interface between vacuum tubes and loudspeakers, ensuring signal integrity and proper load matching. It is part of a broader range of transformers used in high-end audio reproduction systems.
Replacement Considerations
Direct substitutes may include other Hammond models within the 1608-1650 series that share identical electrical specifications. Verify that any replacement matches the 1,900 CT primary impedance and 4/8/16 ohm secondary configuration. Physical dimensions must also be compatible with existing chassis cutouts.
