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Audio and Video Talk
Valves / Vacuum Tubes
E80CF and a new phase-splitter
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<blockquote data-quote="handsome" data-source="post: 1088563" data-attributes="member: 772"><p>Not to split hairs but it?s not a paraphase but a Schmitt splitter. And if i remember correctly (which is highly doubtful) that particular configuration was discussed at length on this forum. The pentode eliminates a triode?s Miller capacitance and the resultant increase in bandwidth then allows for more feedback to be used - provided the output transformer has equally good HF performance of course. Even when Schmitt?s use similar tubes you still need to compensate for the differences in gain (anode resistors), so they never have been the most accurate splitters. Concertinas on the other hand can have excellent balance given matched resistors and that never drifts despite tube aging.</p></blockquote><p></p>
[QUOTE="handsome, post: 1088563, member: 772"] Not to split hairs but it?s not a paraphase but a Schmitt splitter. And if i remember correctly (which is highly doubtful) that particular configuration was discussed at length on this forum. The pentode eliminates a triode?s Miller capacitance and the resultant increase in bandwidth then allows for more feedback to be used - provided the output transformer has equally good HF performance of course. Even when Schmitt?s use similar tubes you still need to compensate for the differences in gain (anode resistors), so they never have been the most accurate splitters. Concertinas on the other hand can have excellent balance given matched resistors and that never drifts despite tube aging. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
E80CF and a new phase-splitter
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