You people are taking names too seriously. Rectifier is just a model name that MESA came up with to name a range of their amps.
What technology here and there, the basic working principal is still the same.
Every single amp running of the wall plug (AC power), MUST have a rectifier stage in the power supply circuit.
MESA, created this dual/triple rectifier by putting 2 or 3 diode rectifier tubes in the power supply, and also a switch to flick between silicon diode (modern) and tube diode (vintage), technologies. It's this power circuit which they have the design patents to.
Just a general knowledge thing, tube rectifier and silicon rectifier have its own characteristics. In tube rectifier, we have what we call power sagging when high current is drawn. But in silicon diode, the properties are more linear, it does not suffer from sagging (negligable effect).
Power sagging means as the current drawn higher, the voltage will be reduced momentary, restored when current reduced. This will result in a "browner" sound from the amp, which is desirable to certain kind of tone. Normally will happen during performance, which the amp is driven hard, so some of the old live vids you see, could attribute this effect to their unique sound. It's not a desirable effect for quite a number of type of songs.
So I hope this will clear up the air on the term rectifier, just a nickname for mesa sound. So some effects will name mesa sound as rectified or rectifier.
What technology here and there, the basic working principal is still the same.
Every single amp running of the wall plug (AC power), MUST have a rectifier stage in the power supply circuit.
MESA, created this dual/triple rectifier by putting 2 or 3 diode rectifier tubes in the power supply, and also a switch to flick between silicon diode (modern) and tube diode (vintage), technologies. It's this power circuit which they have the design patents to.
Just a general knowledge thing, tube rectifier and silicon rectifier have its own characteristics. In tube rectifier, we have what we call power sagging when high current is drawn. But in silicon diode, the properties are more linear, it does not suffer from sagging (negligable effect).
Power sagging means as the current drawn higher, the voltage will be reduced momentary, restored when current reduced. This will result in a "browner" sound from the amp, which is desirable to certain kind of tone. Normally will happen during performance, which the amp is driven hard, so some of the old live vids you see, could attribute this effect to their unique sound. It's not a desirable effect for quite a number of type of songs.
So I hope this will clear up the air on the term rectifier, just a nickname for mesa sound. So some effects will name mesa sound as rectified or rectifier.
