Way too much to ask from a single reply. (Remember Google is your friend.) But here is a very quick & dirty response.
SET = single ended triode. A tube amp with only one output tube per channel that handles both the + and - sides of the waveform. Tend to be lower power but highly beloved by their followers.
Push-Pull = has two output tubes per channel. One tube handles the + side of the waveform and the other handles the - side. Easy to get more power from than an SET.
Triode = the simplest amplification tube type. The cathode (filiment/heater) emits electrons to be picked up by the plate. A grid in the middle regulates the flow. The 3 elements = triode.
Pentode = five elements. A cathode, plate and 3 grids. Gives better control of the tube for certain conditions.
Ultralinear = a push-pull tube circuit that helps reduce certain types of distortion.
Class A = a bit tough to describe simply, but the output circuit is always on. They are very linear but waste a lot of power so the design tends to be used for lower wattage amps. SET amps are Class A operation.
SET = single ended triode. A tube amp with only one output tube per channel that handles both the + and - sides of the waveform. Tend to be lower power but highly beloved by their followers.
Push-Pull = has two output tubes per channel. One tube handles the + side of the waveform and the other handles the - side. Easy to get more power from than an SET.
Triode = the simplest amplification tube type. The cathode (filiment/heater) emits electrons to be picked up by the plate. A grid in the middle regulates the flow. The 3 elements = triode.
Pentode = five elements. A cathode, plate and 3 grids. Gives better control of the tube for certain conditions.
Ultralinear = a push-pull tube circuit that helps reduce certain types of distortion.
Class A = a bit tough to describe simply, but the output circuit is always on. They are very linear but waste a lot of power so the design tends to be used for lower wattage amps. SET amps are Class A operation.