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In Reply to: RE: both of you are wrong posted by morricab on July 17, 2012 at 01:47:47:
" I found that for the most part the best sounding preamps had TUBE power supplies."
Good point. I didn't even like seleniums when they came out back in the day when the lines were cleaner and the rest of the actives were tubes. Hard to beat a 5Y3 and it doesn't stink when it fails...
I got to thinking last night and realized that I haven't done a linear power supply in decades. The very diode characteristics that are a must for switchers are a bane for linears since you want isolation from the out of band, >120 Hz in this case, conducted garbage not efficient detection of it! But of course I won't be scrounging around for transformers that still have a 5V winding, the tube characteristics that are an asset in preamps can be faked with a few discretes since efficiency is not an issue.
Regards, Rick
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Follow Ups
- RE: both of you are wrong - rick_m 07:30:53 07/17/12 (0)