Recently i made a simple common emitter stage on a breadboard that was an altered version of this amplifier from "John audio tech" with and without the constant current source,
the version with the constant current source made around 1.1W of clean power into 8 ohms, and the version without the constant current source made around 0.45W.
The alternations included an additional constant current source version, diffrent resistor values and an single mje3055 npn instead of an darlington, i was really suprised and wanted to expand on this idea and make it higher power and more practical but i soon realised that the bjt common emitter stage is pretty limited and inpractical for anyting highrt power so i made this but now im having trouble with integrating a gain stage into this circuit.
the version with the constant current source made around 1.1W of clean power into 8 ohms, and the version without the constant current source made around 0.45W.
The alternations included an additional constant current source version, diffrent resistor values and an single mje3055 npn instead of an darlington, i was really suprised and wanted to expand on this idea and make it higher power and more practical but i soon realised that the bjt common emitter stage is pretty limited and inpractical for anyting highrt power so i made this but now im having trouble with integrating a gain stage into this circuit.
The current source is self adjusting in compliance voltage, within limits. Set it to the desired DC current.
The gain stage DC output should have the output DC voltage desired, about half the rail DC voltage.
The gain stage DC output should have the output DC voltage desired, about half the rail DC voltage.
it seems to get weird distortions when i try to set it. i probably should use some propper transistor models