|
Page 7 |
|
2003 |
|
Copyright © 2003 John Broskie All Rights Reserved |
|
Spilt-load phase splitter configured to eliminate power supply noise from the output of the vertical center-referenced push-pull amplifier. The bottom triode’s grid must see the same amount of noise as its cathode to null the noise at its plate. This configuration injects the negative rail power supply noise into the phase splitter’s plate circuit, but not its cathode circuit. |
|
Long-tailed phase splitter configured to eliminate power supply noise from the output of the vertical center-referenced push-pull amplifier. The bottom triode’s grid must see the same amount of noise as its cathode to null the noise at its plate. This configuration injects the negative rail power supply noise into the phase splitter’s first (left triode) plate circuit, but not the second triode’s plate, as anti-phase power supply noise is injected there as well and cancels, yielding no power supply noise at the second plate. |