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I know you knew that, Bob. I was pointing out the net results of the overall circuit for the less informed.
yeah jason, we'll all see it with just one post.
OK>
1. the input tubes are more sensitive to microphonics and noise, so I suspect those tubes were selected from the choices Fender keeps as superior in that regard. Depending upon the tubes you select that difference may or may not remain.
2. those descriptions don;t contradict any given here above already, so sure they work.
3. WHo says it is not a "good tube?" You will find that there are numerous criteria upon which to judge a tube. It would be judged not only for its suitability for each task, but also for the sound it makes. One tube may be less microphonic than another, but it might also have a duller tone. Then again, the amp circuit may already be more bright than it could be, and the duller tube still is plenty bright. And so on. After several stages into the amp, signal levels are elevated, and microphonicity is much less of an issue.
There is no magic formula, nor is it critical which tube you select for any stage. Feel free to try as many different 12AX7s as you can find in each position to see which ones make a difference (if any) you might prefer.
yeah jason, we'll all see it with just one post.
OK>
1. the input tubes are more sensitive to microphonics and noise, so I suspect those tubes were selected from the choices Fender keeps as superior in that regard. Depending upon the tubes you select that difference may or may not remain.
2. those descriptions don;t contradict any given here above already, so sure they work.
3. WHo says it is not a "good tube?" You will find that there are numerous criteria upon which to judge a tube. It would be judged not only for its suitability for each task, but also for the sound it makes. One tube may be less microphonic than another, but it might also have a duller tone. Then again, the amp circuit may already be more bright than it could be, and the duller tube still is plenty bright. And so on. After several stages into the amp, signal levels are elevated, and microphonicity is much less of an issue.
There is no magic formula, nor is it critical which tube you select for any stage. Feel free to try as many different 12AX7s as you can find in each position to see which ones make a difference (if any) you might prefer.
pulled some old philips miniwatt ecc83s (? 12ax7 equivalent) out of a farfisa organ and put 'em in slots 1 and 2; MAJOR difference from these russian garbage tubes. sheesh. so tragic that good tubes are out of production now.
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