Leslie Amp Screen Supply

[RudeBoy]

The Leslie amplifier uses a screen supply voltage that is about 115V below the plate supply voltage.

Are there advantages or disadvantages to operating this way? Power, distortion for example?

-- bradley

[pdf64]

I'd guess that the main advantage is tube life, as it will reduce screen current / dissipation.

[loudthud]

It's a conservative approach. You don't see 6550s cathode biased very often. One advantage is you don't have to drive the 6550s so hard.