In Reply to: RE: FS: Rare NOS TL-404 Autoformers posted by xcortes on September 9, 2015 at 14:42:35:
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)