Can An Output Transformer Change A Voltage Amp's Output Impedance From 0.1 To 47 Ohms

[Steve Eddy]

Originally posted by AndrewT
if you wanted to convert 0r1 to 47r using a transformer then a turns ratio of 21.7 does the job.

Uh, yeah, that'll turn your amplifier's 0.1 ohm output impedance into a 47 ohm output impedance. But transformers work both ways so your amplifier will see your otherwise 8 ohm speaker load as a 0.017 ohm load.

As much as I love transformers, this definitely isn't something you'd want to use them for. If you're not going to use a proper current source amp, just use a resistor.

se

[MJL21193]

Originally posted by leadbelly


Rod Elliot is just about the worst reference you can make for this kind of information, he's as anti-exotic as you can get. Of course the transformer has to be of high quality for Pete's sake, why do you think tube amp transformers cost so much!

Rod Elliot points out transformers introduce non linear distortion. Thats fine in a tube amp, which has so much to begin with, but in a solid state amp you not only add distorsion, you also throw away your damping factor. Low damping can cause further distorsion. Is this an attempt to immitate a tube amp?
If you want Valve sound, get a valve amp.