Hello,
I am an electronic engineering technologist student, and for my capstone project I am building a stereo amplifier using a solid state front end and a tube power amplifier. One of the requirements for the amplifier is that an ARM microprocessor be used somehow. I have decided to use the microprocessor to control the volume, bass/treble control, speaker balance and input select.
I have always been facinated with vacuum tubes and thought it would be a good idea to incorporate it into my ampliifer. The tubes I have chosen are KT88's (I bought 4 matched Electro-Harmonix tubes) in a class AB configuration. I want the power output to be 50-75 watt per channel with THD <%1. Since I have never built a tube amplifier before I would like some suggestions from you guys.
One of my main concerns is combining a solid state pre-amplifier with a tube amplifier. I can't find a lot of information on this setup, so any comments or information sources would be greatly appreciated.
Is there anyone who has experience with implementing digital potentiometers in an amplifier? They seem pretty straight forward. Also, could there be noise issues with running an analog signal through a digital pot?
Thanks
I am an electronic engineering technologist student, and for my capstone project I am building a stereo amplifier using a solid state front end and a tube power amplifier. One of the requirements for the amplifier is that an ARM microprocessor be used somehow. I have decided to use the microprocessor to control the volume, bass/treble control, speaker balance and input select.
I have always been facinated with vacuum tubes and thought it would be a good idea to incorporate it into my ampliifer. The tubes I have chosen are KT88's (I bought 4 matched Electro-Harmonix tubes) in a class AB configuration. I want the power output to be 50-75 watt per channel with THD <%1. Since I have never built a tube amplifier before I would like some suggestions from you guys.
One of my main concerns is combining a solid state pre-amplifier with a tube amplifier. I can't find a lot of information on this setup, so any comments or information sources would be greatly appreciated.
Is there anyone who has experience with implementing digital potentiometers in an amplifier? They seem pretty straight forward. Also, could there be noise issues with running an analog signal through a digital pot?
Thanks