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Old 22nd February 2013, 07:08 PM   #31
Mooly is offline Mooly  United Kingdom
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Quote:
Originally Posted by jake01 View Post
The new transformer finally came in (a Triad part from DigiKey), and although it's spec'ed identical to the original part, it weighs only 75% as much (32 oz for the original, and 24 oz for the Triad), not sure why I WANT to know why this is, but I really do..
I can't give a definite answer to that... different properties of the core material perhaps, other transformer rated for 50/60hz and replacement 60hz. Dunno

Quote:
Originally Posted by jake01 View Post
And a secondaries wiring question - the circuit uses each of the two secondaries per LM3886. What about combining the secondaries in parallel instead, and feeding both LM3886's from the same rails (or is it rail)? Would this not work better, given that the tweeter amp will use less current, and pooling all current together is a better way to load balance?

Thanks for your input!!
Looking back at the pictures at the start, the windings are series connected to derive the split (-/+) rails. You have to stick with that arrangement.
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