[sdiy] [OT] first steps with audio transformers

[Michael Zacherl.]

On Nov25, 2010, at 02:00 , cheater cheater wrote:

> On Wed, Nov 24, 2010 at 18:33, Harry Bissell <harrybissell at wowway.com> wrote:
>> You can connect windings in series if you like... (or parallel but you probably don't want to do that...)
>> 
>> Low DC resistance should not be an issue, you need to keep DC out of a transformer anyway.
>> 
>> Probably you want to have some opamp buffer to drive the transformer. You'll need to keep signal
>> levels pretty low
> 
>> to avoid saturation at low frequencies
> 
> Why would you want *that*?

well, as always, that entirely depends on your application.
I'm considering saturation as well (trimable, as part of the output stage) - but since I have no experience 
with audio transformers  it's hard to tell  what products behave how when driving them hard.

;-)  m.

>> (approaching DC, which is bad...).  That's
>> why the distortion chart takes such a steep curve up at the low end...
>> 
>> Try http://www.jensen-transformers.com/ for some good reading
>> 
>> H^) harry


--
nonconform? noiseconform: http://blauwurf.at
http://facebook.com/noiseconformist