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A questions about valve power regulation

beammeup

pfm Member
... what exactly is the benefit of using valves to regulate and smooth the power supply? An example of this implementation is in Glenn Crofts 25R and Power 7R.

The non R version don't have valve regulation, just valves where I expect them to be at the amplification stages (and not caressing the power supply).

I'm not criticising because his amps sound brilliant - I just don't see many implementation by other manufactures using valve regulation in the power supply thats all.
 
If done properly like crofts or puresound with quiet feeds to the heater then they are quieter than solid state...
 


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