146F

Description：AUDIO XFMR 250CT / 3.2 CHAS MNT
Series：146
Mfr：Hammond Manufacturing
Package：Bulk

SKU:9dc67d81eb97 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：AUDIO XFMR 250CT / 3.2 CHAS MNT
Series：146
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Chassis Mount
Size / Dimension：1.630" L x 0.880" W (41.40mm x 22.35mm)
Height - Seated (Max)：0.810" (20.57mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：250CT
Impedance - Secondary (Ohms)：3.2
DC Resistance (DCR) - Primary：11Ohm
DC Resistance (DCR) - Secondary：300mOhm
Transformer Type：Economical Open Type
Frequency Range：150Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：700mW
Operating Temperature：-
Approval Agency：-

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146F

Overview

The Hammond Manufacturing 146F is an economical open-type audio output transformer designed for chassis mounting. It features a primary impedance of 250 Ohms and a secondary impedance of 3.2 Ohms with a center tap configuration. The component operates within a frequency range of 150Hz to 15kHz, maintaining a frequency response of ±1dB. It supports a power level of 700mW and is intended for general-purpose use in push-pull tube output circuits.

Feature Summary

Designed for push-pull tube output circuits
Economical open-type construction
Chassis mount installation

Applications

Push-pull tube audio output circuits
General-purpose audio signal transformation
Replacement in vintage audio equipment

Procurement Notes

Verify the specific impedance requirements against your circuit design before ordering. Confirm that the chassis mounting style fits your enclosure constraints. Check current availability as stock levels may vary by region. Ensure compatibility with the operating temperature range of your application environment.

Selection Notes

Select this model when a low-cost solution for tube amplifier output stages is required. The 250-ohm primary and 3.2-ohm secondary match common vacuum tube specifications. Consider the physical dimensions for chassis integration. Verify that the 700mW power rating meets the signal demands of the target audio system.

Part Context

This component belongs to the Hammond 143-146 series of audio chassis mount transformers. The series offers various impedance configurations for different tube types. The 146F specifically targets applications requiring a 250-ohm primary input. It serves as a direct replacement for similar legacy audio output transformers.

Replacement Considerations

Compatible substitutes include other Hammond 146-series variants with matching impedances. Verify pinout and physical dimensions when cross-referencing with non-Hammond brands. Ensure the replacement maintains the same power handling and frequency response characteristics.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.