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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Tubes in the preamp stage......specifically two simultaneous preamps before the amplifier posted by wolters_jason@yahoo.com on September 30, 2015 at 14:18:39:
The phase splitter is an essential stage in Push-Pull power amp circuits. Most of the time, it's a fairly colorless stage. I've rolled many tubes in guitar amps, and I'm hard-pressed to tell the difference between tubes except if they have different characteristics, tested parameters, or wildly different construction types (so, a 5751 versus a Sylvania long plate 12AX7; or, weak versus strong tubes).
As for your amp and why they used a tube, well, ask yourself the same question with the Samsung tubed soundbar. It's for show. It's like others explained: most of the gain and tone shaping is present early in the circuit and is done by transistor amplification. Having a tube so late in the amp's staging is like driving a new hybrid car with a vintage fuel injection system for show.
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May your tubes be lively, warm, and long-lasting. Holy be thy heater.
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- RE: Tubes in the preamp stage......specifically two simultaneous preamps before the amplifier - TubeAcolyte 06:20:01 10/01/15 (0)
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