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Modular Amps
Egnater / Randall Modular Amps
What do I bias KT 77 tubes at?
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<blockquote data-quote="joey_truelove" data-source="post: 156079" data-attributes="member: 95"><p>Well, not quite. The EL34 has an absolute max of 27W, which means that a minute drift or biased prior to warming up properly may blow them. </p><p></p><p>The KT77 has an absolute max of 32W and typically they are more rugged than comparable true pentodes, particularly those made today. </p><p></p><p>I would personally go as hot as 85% of 25W, which equals 70% of 30W. The KT77 mellows out pretty well at this point and exhibits various shades of semi-clean overtones, perhaps similar to the KT66.</p></blockquote><p></p>
[QUOTE="joey_truelove, post: 156079, member: 95"] Well, not quite. The EL34 has an absolute max of 27W, which means that a minute drift or biased prior to warming up properly may blow them. The KT77 has an absolute max of 32W and typically they are more rugged than comparable true pentodes, particularly those made today. I would personally go as hot as 85% of 25W, which equals 70% of 30W. The KT77 mellows out pretty well at this point and exhibits various shades of semi-clean overtones, perhaps similar to the KT66. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
What do I bias KT 77 tubes at?
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