Audio Research VM220 and VT200 amps have serious design shortcomings......
On 02/13/11 00:51, flipper so witilly quipped:
On Sun, 13 Feb 2011 00:07:31 -0800, Big Bad Bob
wrote:
The 'tube' version of an SMPS is a vibrator.
I can see your point about using a vibrator, but there's no regulation
there. ON the other hand, high voltage for color TVs (flyback circuit)
had regulation. Since there's a precedent there, I thought it would be
fun to do the switching PS with the same tubes used in horizontal
flyback transformer drive circuits. But yeah, complexity and all of that.
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