PigletsDad
My intelligence test came back negative.
While I am stuck at home recovering, I have had a little fiddle with LTSpice, looking at a small power amp that uses a scaled up version of the B4 as its output stage. This is very preliminary, and I won't show a schematic, as it is full of cheats like perfect current sources and voltage sources, and is more complex than needed.
The idea is for a small class A amp, maybe 4W into 8 Ohms, with low feedback for use in places where quality beats quantity. I was thinking of things like tweeter drive in active systems if the tweeters are very sensitive, horn loaded speakers or small near field systems.
Think of it as sort of place people might use a SET amp, but with less 2nd harmonic, low output impedance and a flat frequency response.
If I come up something that is buildable, I will post a schematic and some numbers.
The idea is for a small class A amp, maybe 4W into 8 Ohms, with low feedback for use in places where quality beats quantity. I was thinking of things like tweeter drive in active systems if the tweeters are very sensitive, horn loaded speakers or small near field systems.
Think of it as sort of place people might use a SET amp, but with less 2nd harmonic, low output impedance and a flat frequency response.
If I come up something that is buildable, I will post a schematic and some numbers.