Recent content by erer44

That did it, thanks! Now I can get to building the real thing. I'm in this just a bit over my head. Starting to understand more and more though.

And here is the oscilloscope with the middle pot all the way down and all the way up.

Of course. This is the preamplifier section I am working out the kinks on right now. I'm putting 1.5vP into it from the function generator, and it goes through a power amp and output transformer for 8 or 16 ohm speaker loads. Thanks again! Let me know if there's anything you can't make out.

It seems to have something to do with the middle tone control. As I lower it, the distortion decreases until it's almost gone with the control at 0% If I remove the middle control from the circuit entirely the 'crossover' disappears. Now that I have the problem so isolated I feel confident...

I'm getting a bit of what appears to be crossover distortion in my audio pre-amplifier simulation. Tried a bunch of different fixes, it was still there. Could it be that the simulation's transistors are so exactly matched? I'll continue searching for an error in my model. Thanks for any...

No audio chip. Just the resistor loads for transistors. Hadn't made it to the transformer voltage prior to rectification yet, thought that might be the case. Thank you!

Hello, I'm sure it will be easy for someone to answer. I have an amplifier circuit running in multisim and it's drawing around 9mA of current, 25VDC. Am I right in thinking that the circuit will only draw as much current as needed from the transformer, and a 25v 2A tranny would work to power...