Re: JLH Class 'A' Amplifier
As Silicon said, interesting choice of a switcher for the power supply.
Linn went to switchers in the late 1980s mostly because of needing power factor correction, I believe.
For most class A/B hifi amps, the pulsing current demand requires unusually good bandwidth in the switcher's control loop and you can get into all sorts of trouble. The class A design doesn't stir up this problem.
A past boss of mine got into a protracted argument with JLH over the advantages in noise floor of series and shunt modes of negative feedback, in the letters pages of Wireless World.
I like the ziggurat heatsinks!
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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