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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: NFB - when it's good, it's good, when it's bad, it's bad posted by Anthony Dockrill on January 19, 2007 at 01:24:09:
Output transformer may be a culprit here. SE OPTs have poor characteristics compared to PP OPT. Poor coupling, high leakage inductance, high winding capacitance. Including such a transformer into a feedback loop is asking for trouble.
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Follow Ups
- It may have nothing to do with triode-pentode issue. - sser2 12:39:12 01/19/07 (1)
- No, not as simple as merely OPT issues/variables... - Thomas Martens 16:43:30 01/19/07 (0)
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