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Product Detailed Parameters
- Description：AUDIO XFMR 6.6KCT / 8 CHAS MNT
- Series：1750
- Mfr：Hammond Manufacturing
- Package：Box
- Mounting Type：Chassis Mount
- Size / Dimension：3.710" L x 2.400" W (94.23mm x 60.96mm)
- Height - Seated (Max)：2.371" (60.22mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：28.72:1
- Impedance - Primary (Ohms)：6.6kCT
- Impedance - Secondary (Ohms)：8
- DC Resistance (DCR) - Primary：428Ohm
- DC Resistance (DCR) - Secondary：470mOhm
- Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
- Frequency Range：70Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：20W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1750H is an unshielded audio output transformer designed for tube amplifier applications. It features a primary impedance of 6,600 ohms center-tapped and a secondary impedance of 8 ohms. The unit supports a power rating of 20 watts with a frequency range spanning from 70 Hz to 15 kHz. It utilizes wire lead termination and chassis mounting. Key electrical specifications include an inductance of 94.74 H, a primary DC resistance of 428 ohms, and a secondary DC resistance of 0.47 ohms.
Feature Summary
- Designed as a replacement output transformer for specific Fender guitar tube amplifiers
- Provides push-pull output capability with center-tapped primary winding
- Constructed with wire leads for direct circuit integration
Applications
- Fender Deluxe Reverb 65 Reissue
- Fender Deluxe Reverb 68 Custom
- Fender Deluxe 68
Procurement Notes
Verify the exact amplifier model and original transformer specifications before purchase. Confirm that the target equipment requires a 6,600-ohm center-tapped primary and 8-ohm secondary configuration. Ensure the physical dimensions and mounting style are compatible with the existing chassis layout to guarantee proper installation.
Selection Notes
Select this component when replacing a failed output transformer in compatible Fender tube amplifiers requiring 20-watt handling capacity. Consider the unshielded construction and specific impedance matching requirements. Verify compatibility with the existing speaker load and tube plate-to-plate impedance requirements of the amplifier circuit design.
Part Context
This component belongs to the Hammond Manufacturing 1750 series of audio transformers. These units are engineered for high-fidelity audio signal transmission in vacuum tube circuits. The series includes various impedance configurations tailored for different amplifier topologies and manufacturer specifications.
Replacement Considerations
- 1750E
FAQ
What is the primary impedance configuration?
The primary impedance is 6,600 ohms with a center tap.
Is the transformer shielded?
No, the 1750H is an unshielded audio transformer.
