rbbert
Premier Club Member
Last Activity: 02-21-2020, 07:24 PM
Joined: 02-07-2016
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Really?? How do you know what you are hearing? More importantly, how do you determine when a tube is "burned in", especially with "NOS"... -
Which is part of my point. The comment about "10,000 hrs" for some NOS tube types (usually lower power pre-amp tubes conservatively driven)... -
I have nothing for or against Brent; I bought a pair of tubes from him I didn't like and he took them back, no questions asked, full refund including... -
I'm not sure what this statement means, or whether there is any data to support it. "What they claim" is pretty meaningless; who are "they",...Leave a comment:
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This one is clearly Ulm from 1968; the other could be Ulm or Berlin 1970. Although generally the late '60's and early '70's are considered "inferior"... -
Are you going to give us a picture of the factory and date code so that we can see what tube you are talking about?...Leave a comment:
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You need to turn the 3rd photo just a bit to show the date and factory code... These appear to be 2 or 3 notches down from the "best" Tele... -
Which ones are they? There are quite a few Telefunken 6922 varieties from the '60's, though all are probably very good. Any reputable tube dealer gives... -
The Grateful Dead reach a milestone
Always interesting to me, and probably some others here
https://www-forbes-com.cdn.ampprojec...in-the-us/amp/ -
Generally speaking I dislike kibitzing a thread, but this one is so obvious I feel I have to throw it out there. With all your work and experimentation...Leave a comment:
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And how do you know they are $365 each?? They could just as easily be twice that, or half that. NOS tubes change price all the time, even from the same... -
Supposedly a good E88CC in an appropriate circuit is good for 10,000 hrs, but you could certainly buy a new production cheapy just to test. Electro-harmonix... -
So is this good or bad? Maybe time to try some new or at least different tubes??...Leave a comment:
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"return on investment" and law of "diminishing returns" refer to two different phenomena. Diminishing returns, as it refers to the...Leave a comment:
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