Replacing an Audio Transformer: EI-19 Output Specs and Replacement Guide

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Discussion Overview

The discussion centers around the replacement of an EI-19 audio output transformer, focusing on specifications such as primary to secondary ratio and voltage ratings. Participants explore the characteristics of audio transformers compared to other types of transformers used in AC to DC converters, as well as considerations for replacement options.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the specific replacement for the EI-19 audio transformer, noting a lack of information on the primary to secondary ratio and voltage ratings.
  • Another participant asks for details about the equipment the transformer is used in, suggesting that it is likely part of an amplifier driving a speaker and requests information on the wattage.
  • A different participant proposes the possibility of rebuilding the transformer instead of replacing it.
  • One participant mentions that the EI-19 designation primarily indicates the bobbin or coil size, prompting further questions about the circuit in which the transformer is used.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specifics of the transformer replacement, and multiple viewpoints regarding the nature and specifications of audio transformers remain present.

Contextual Notes

There are limitations regarding the missing specifications for the EI-19 transformer, such as the primary to secondary ratio and voltage ratings, which are critical for determining an appropriate replacement.

Who May Find This Useful

Individuals involved in audio equipment repair, transformer design, or those interested in the specifications and characteristics of audio transformers may find this discussion relevant.

chaoseverlasting
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I need to replace an Audio transformer, EI-19 Output Transformer. What should I replace it with? I can't find the primary to secondary ratio, or the voltage ratings. Is there something special about audio transformers compared to step up/down transformers used in AC to DC converters? If so, what do I need to know to replace it?
 
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What type of equipment is this in? An audio output transformer just about always is driving a speaker. An amplifier? If so, how many watts?
 
Any chance you can rebuild it?
 
From Google it looks like a EI-19 audio transformer just specifies the bobbin or coil size. What else do you know about it, or the circuit in which it is being used?
 

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