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Tube phono preamps
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<blockquote data-quote="Ampdog" data-source="post: 634696" data-attributes="member: 144"><p>As you say</p><p></p><p>The various ways of using feedback is an interesting field - lots of experiments by me, even before one had Spice available.</p><p></p><p>But unsure whether we are not a little off the OP's intentions. Perhaps Karel would like contributions to get closer to his original intended circuit. As said I found a Spice analysis of that spot-on - with a bogey valve! I have not gone over Tangmonster's analysis - the present <span style="color: red">temperature-of-day </span>is not encouraging! </p><p></p><p><span style="font-size: 11px">Perhaps a worst-case analysis involving valve parameter extremities later - which may not have other implications than that one has to live with that; one cannot expect to have tube measurements involved as well in practice.</span></p></blockquote><p></p>
[QUOTE="Ampdog, post: 634696, member: 144"] As you say The various ways of using feedback is an interesting field - lots of experiments by me, even before one had Spice available. But unsure whether we are not a little off the OP's intentions. Perhaps Karel would like contributions to get closer to his original intended circuit. As said I found a Spice analysis of that spot-on - with a bogey valve! I have not gone over Tangmonster's analysis - the present [color=red]temperature-of-day [/color]is not encouraging! [SIZE=11px]Perhaps a worst-case analysis involving valve parameter extremities later - which may not have other implications than that one has to live with that; one cannot expect to have tube measurements involved as well in practice.[/SIZE] [/QUOTE]
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