Pro Audio Design Forum

In your second try using the NLC you mention a 10K resistor. Where was that in the circuit?

Thank you for joining us!

Interesting EE Times Article:

https://www.planetanalog.com/author.asp?doc_id=528114

Oops, wrong thread!

I think it fits here fine. One is for phones, one for transformers. Need to start one for driving cable.

It's very adaptable circuit...

Roger - Thanks. I may need to clarify something for our readers. The circuit Roger is refering to is not actually posted in this thread but is the headphone amplifier with external driver transistors. For the sake of clarity it is here: https://www.ka-electronics.com/Headphone_Amp/Headphone_Amp_1646...

That's the one I remember. Very clever.

Roger - You can indeed drop the 33R build-out to drive a transformer. It's there only for driving phones and hearing protection. Some phones in fact may sound better without it. As a direct-coupled line driver using no transformer, the circuit is capacitive load stable as well without the 33R. The o...

Those active cap multipliers with diode clamps to make it fast for large changes and slow for small changes is very similar to a circuit I did in the '80s for a NR... While I added a few other tricks too, it was the same general concept. Still found as the NLC in the Pico and THAT DN-114: http://ww...

Do go back and have a look here. This will give you a hard knee:

viewtopic.php?f=6&t=268&start=2

PS: Don't forget to vote early and often in mid term election coming up. Well, I guess the year going fast was a good thing. :D Still, I'll miss summer. From August to September I got two houses exteriors painted and only lost maybe three days to rain. I suppose by mid November I'll have to give up...

Wasn't it the UV reacting with CFCs that was going to end life as we know it? :D With UV declining does this mean we can start using real Freon cleaners again? "They [the solar cycles] are contributing nothing to long-term global warming," she said, "and it has no bearing on what we u...