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In Reply to: Re: Looking for a GOOD 211 / VT4-C Schematic posted by Super_BQ on July 18, 2003 at 00:57:17:
"It now depends upon how much power you require at the output and how much input volatge (sensitivity) your system can provide, as to whether you will need one stage or two before the 211."I forgot to mention that the pre-amp I plan to use is an active type. It has quite the output gain (at least 2v output).
Powerwise, i'm happy with around 10 watts but then again, i've never seen 211/VT4-C wired for that low wattage output. I guess it wouldn't do justice running such a tube under 1KV so wattage would normally be a lot higher.
Follow Ups:
Actually the power output at higher voltages in the case of the 211 is usually lower because to get power out of a 211 you must use A2. Just answering on the fly I'd expect to see perhaps as little as 15 watts, very unlikely 20 watts, but 10 watts is sufficient for your needs. This is good because it possibly allows a "better" valve choices elsewhere. There is nothing worse than having to use valves because of their parameters rather than their sound.
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