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RE: FS: Rare NOS TL-404 Autoformers

Oldest application in the book for an audio autoformer. Tie your tweeter to a low tap and hook amp to a higher tap, voila step-down.

Now the reflected impedance to the amp will be higher, but you can use a resistor from the high tap to ground to put the impedance seen by the amp where you want it.

All of the big transformer houses made parts to do this.

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  • RE: FS: Rare NOS TL-404 Autoformers - Joe Roberts 15:35:41 09/09/15 (0)

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