Personally, I prefer the wire-wound resistors here and there.
People say that they are concerned about the inductance.
But, the amount of the energy being stored in the magnetic field in the region surrounding the current-carrying wire-wound is considered too small and ignorable to interrupt audio frequencies, IMHO
People say that they are concerned about the inductance.
But, the amount of the energy being stored in the magnetic field in the region surrounding the current-carrying wire-wound is considered too small and ignorable to interrupt audio frequencies, IMHO
Can I suggest that you try constantan wire - I have used this as emitter resistors on my JLH type amp and also in my crossovers. It sounds very good to me - much better than the caddocks thick film that I had been using and is very cheap.
I was using wire of about 4.2 ohms per meter
available from here
http://www.wires.co.uk/
mike
I was using wire of about 4.2 ohms per meter
available from here
http://www.wires.co.uk/
mike
I'll guess this is an issue the faster you want the output stage to be and/or the more feedback you apply.Nelson Pass said:I've never had so much inductance on the resistors that it
showed up as an issue.
Originally posted by peranders ... the faster you want the output stage ...
Gee…… here, the phase angle between the sinusoidal emf and current is so big to metion the faster or the slower??????
You post resemble a god-damn spam mail.
Poor moderators are sleeping??????
Hi
I don't understand very well.
Once I saw a picture of Goldmund power amplifier. It had a pair of small coil (inductunce) // resistor, which was connected in series with the speaker terminal. I think that the L//R was to decouple any capacitive load, so to prevent oscillations at high frequencies.
I would like to see the wirewound resistor as a pair of L//R (L value is very low enough to be ignored, tho). Then, how could I explain that the wirewound resistor connected in series with the speaker terminal might be the origin of the oscillations?
Regards
I don't understand very well.
Once I saw a picture of Goldmund power amplifier. It had a pair of small coil (inductunce) // resistor, which was connected in series with the speaker terminal. I think that the L//R was to decouple any capacitive load, so to prevent oscillations at high frequencies.
I would like to see the wirewound resistor as a pair of L//R (L value is very low enough to be ignored, tho). Then, how could I explain that the wirewound resistor connected in series with the speaker terminal might be the origin of the oscillations?
Regards
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