1650RA

Description：XFMR 5KCT / 4, 8, 16 CHAS MNT
Series：A
Mfr：Hammond Manufacturing
Package：Box

SKU:b6c638b88dc9 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：XFMR 5KCT / 4, 8, 16 CHAS MNT
Series：A
Mfr：Hammond Manufacturing
Package：Box
Mounting Type：Chassis Mount
Size / Dimension：4.250" L x 3.750" W (107.95mm x 95.25mm)
Height - Seated (Max)：4.560" (115.82mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：5kCT
Impedance - Secondary (Ohms)：4, 8, 16
DC Resistance (DCR) - Primary：47.43Ohm, 54.65Ohm
DC Resistance (DCR) - Secondary：232mOhm, 333mOhm, 343mOhm
Transformer Type：Push-Pull Audiophile, Ultra-Linear - Tube Output
Frequency Range：30Hz ~ 30kHz
Frequency Response：±1dB
Voltage - Isolation：3535VDC @ 1 Second
Insertion Loss：-
Return Loss：-
Power Level：100W
Operating Temperature：-
Approval Agency：-

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1650RA

Overview

The Hammond Manufacturing 1650RA is a push-pull audio output transformer designed for tube amplifier circuits. It features a primary impedance of 5,000 ohms center-tapped with a maximum DC current of 318 mA. The unit delivers a power rating of 100 W and operates within a frequency range of 30 Hz to 30 kHz. Secondary windings provide selectable impedances of 4, 8, and 16 ohms. The component utilizes terminal connections and includes shielding to minimize interference.

Feature Summary

Push-pull configuration optimized for tube output stages
Redesigned secondary windings facilitate straightforward load hook-up
Shielded construction reduces electromagnetic interference

Applications

High-power tube audio amplifiers
Professional PA system output stages
Hi-fi tube amplifier replacements

Procurement Notes

Verify the specific primary impedance requirement matches the amplifier circuit design. Confirm that the physical mounting dimensions and terminal types are compatible with the existing chassis layout. Ensure the power handling capacity meets the peak output demands of the intended application before finalizing procurement.

Selection Notes

Select this model when a 100 W push-pull output transformer is required. The 5,000-ohm primary impedance suits specific tube configurations. The redesigned secondary terminals simplify wiring compared to previous series iterations. Verify compatibility with the target speaker impedance taps provided by the unit.

Part Context

This component belongs to the 1608-1650 Series of multiple secondary output transformers from Hammond Manufacturing. It represents an improved version of earlier models in this family, specifically featuring re-engineered secondary windings to enhance ease of installation and connection reliability in high-power audio applications.