Tweakers' Asylum

RE: Can a constant voltage transformer be of any use in audio?

65.103.50.122

djk

In Reply to: RE: Can a constant voltage transformer be of any use in audio? posted by Christopher Witmer on May 16, 2009 at 17:13:19

I dumpstered about 36 pieces of 80VCT 400VA that were brand new. It wasn't worth the effort to salvage the copper and iron.

The one audio amplifier I built with one sounded OK, but it was a bit noisey, even for the garage system. They have no peak power either, they fold-back the current when you push them.

Follow Ups:

Yeah, I would only use them with very low-draw components - Christopher Witmer 06:47:06 05/18/09 (2)
I was thinking that it might be good to use them with low draw components. But maybe, rather than using them for audio, I'll stick to applications where the mechanical noise does not matter.

-- Chris
- Heat, Cost, and Noise - djk 16:03:01 05/18/09 (1)
  Be aware that they run hot, and have high idle power as well.
  
  I had a Sola on computer and TV power many years ago, it was expensive to have hooked up 24/7.
  - Thanks, I'm sure that's especially true with such a small one - Christopher Witmer 13:43:38 05/19/09 (0)
    Yeah, I bet the regulation in this small transformer could be as high as 15%, in which case that would be a lot of heat and money to burn.
    
    -- Chris

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