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RE: Shielding Choice in SET Power Supplies

Posted by SteveBrown (A) on November 30, 2016 at 14:36:36

In Reply to: RE: Shielding Choice in SET Power Supplies posted by Paul Joppa on November 29, 2016 at 20:23:06:

If noise is the problem, I've found what I think is a good starting point and that is to study well thought out real-world examples. (Hint, look at some bottlehead layouts). There's a lot of good examples on the web, JE Labs is another good one, though not sure it's still up and running. Personally, if I'm building a preamp I always opt for a custom wound transformer with electrostatic shield. One reason for custom is the typical 6.3v heater winding is often not enough to rectify and then get through a regulator without too much dropout. At least that's my experience. So I usually opt for 7.5v or 8v heaters and an amp or more over what I need. This is for a preamp, however, and on a power amp there are other questions about heater stuff. Best of luck!

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