In Reply to: RE: Even worse, $400.00 each posted by cpotl on April 4, 2014 at 10:09:22:
I chose the Mundorf diagram only to point out the fact that there cannot be two unconnected foils in the capacitor, because in that case the bridge rectifier would not see ground, in their diagram.
In the circlotron, at least in the Atma-sphere version, the negative side of each of the two supplies is floated from audio ground by a 600R resistor. The voltage dropped across those Rs at idle is (I actually forget the exact value) certainly under 2V, more like 1V. So the supplies are indeed not grounded, but hovering close to it. Kind of like a tethered dirigible.
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Follow Ups
- RE: Even worse, $400.00 each - Lew 14:55:40 04/04/14 (1)
- There is no voltage at all WRT ground at idle. - Ralph 11:55:21 04/07/14 (0)