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Inspire by Dennis Had Enjoying Vacuum Tube Audio

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Old 03-21-2024, 01:13 AM
Isaacc7 Isaacc7 is offline
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Speaking of the 807, I wonder what kind of power can be gotten out of them in SE pentode? what about a pair in parallel SE? The anode in pentode mode can take a lot of voltage thanks to the top cap. Would it give up the amazing (IMO) sound it gets in the Firebottle if it got cranked up? If Dennis ever made an amp like that I’d be sorely tempted. Being who I am I would probably request it with regular octal sockets so that I could adapt them to 807, 5b/254m, and 6gb6.
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Old 03-21-2024, 02:31 PM
Isaacc7 Isaacc7 is offline
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Huh, looks like Gordon Rankin already tried a higher power 807 SE amp with mixed results. https://www.fidelity-online.de/wp-co...ractices-2.pdf

The resulting power isn’t all that much more than what we can get with the KT88 Firebottle. I am also curious if the 20lb output transformers are really necessary. The extra handful of watts requires that much of a jump? I know both Gordon and Mike were both experienced designers but I dunno, seems like the OT could be smaller and less expensive.
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