Switching power attenuator for tube amps?

[dschwartz]

Just thinking.
I have been reading about class D amps and SMPS...
Has anyone thought about a power attenuator /dummy load using switched transistors?
I have seen attenuators like this for DC...but maybe they could be used for tube amps..i thing of high power mosfets switched by pwm at a frequency above the response of the transformer...maybe there's something there and we could make small light dummy loads..

Any ideas?

[PRR]

> small light dummy loads..

The power has to go SOMEwhere.

(Arthur Clarke wrote of a gizmo to suck all the sound out of a room, but it exploded.(*))

I suppose we "could" up-convert amplifier output power to DC and then to 220V-50Hz/ 120V-60Hz, push into the wall outlet, run your electric meter backward.

A resistor is SO simple.

(*)Text, 75KB PDF

[graemestrat]

Have a look at London Power website - power scaling. no need to attenuate.