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The RF from the radio enters the amplifier. Then, a piece of wire or coax carries the RF to either a potentiometer or a switched resistor bank that is attached to ground. some rf passes to the driver or final of the amplifier, some is bled off to ground. These are primitive ways of implementing what is known as a swamping network.

There are no voltage regulators used, un less the amplifier has a true bias network. But changing that voltage would only net a change in class. A, C, AB1 etc...

[QUOTE="dxhound, post: 390857, member: 2167"] The RF from the radio enters the amplifier. Then, a piece of wire or coax carries the RF to either a potentiometer or a switched resistor bank that is attached to ground. some rf passes to the driver or final of the amplifier, some is bled off to ground. These are primitive ways of implementing what is known as a swamping network. There are no voltage regulators used, un less the amplifier has a true bias network. But changing that voltage would only net a change in class. A, C, AB1 etc... [/QUOTE]

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