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In Reply to: Oh dear , I've upset him posted by fatbottle on September 30, 2004 at 09:45:26:
In the coarse of a constructive discussion I will accept all sorts of critique and suggestions, but that's not what you are conducting here.
You just continue to post misleading general opinions as "facts".
You may have general experience with this type of circuit but at some point it's time to stop waiving your hands and be more specific. While I built this circuit and listened to the modified amp and posted specific data, you continue with unfounded "facts" - anecdotes...
Since all that "blurry" talk makes me look like someone who has no clue what he's doing and the (proven) mod as incompetent, what could I do but set things straight?I just wanted to clarify that issue to other readers.
It is legitimate for you to say "it's my experience" or "it's my opinion", but going on and on with blank claims and dismissing all my data, just because it suits your pre-conceived general opinion?
Then you tell me "Anecdotal evidence is all you have so far", refering to my actual measurements? Why?!
If you submit repeated hard accusations you better have irrefutable evidence, Counsellor!You can review my simulations (below). Please don't post that it's all wrong without serious data!
You want scope pics? You'll dispute anything I say anyway, so it's best that you take them yourself (with my specific circuit please).
After you review that data against my claims, I believe an apology would seem quite appropriate.
Follow Ups:
Hello ,
It's amazing just how misleading these simulations can be . Quite frankly I don't believe the graphics provided (anyone could do this in MSPaint) . Please supply some shots of some scope traces . What about the distortion ? Surely you can provide a shot of a (non-simulated) spectrum analyser sweep , can't you ? I'll believe you then ;) I'm very interested in 12AT7's , after all I have 700 of them . If your circuit performs as specified , I'd love to press a few into service . Not really a fave of mine at the I'm afraid . It was the same with E88CC's until I tried Allen Wrights circuits . Convince me or stop all this bull
cheers
How predictable...
Since we don't have any baseline rules, what's exactly the point you're trying to make in asking for more data?
Hello ,
There is no need to get defensive and no I'm not prepared to build one . The bench is already taken up with a PP GM70 amp , no more room ! Scope traces perhaps will settle this ? I thought you had access to distortion measuring equipment also ? You have a digital camera and you say you have a scope . Off you go , I'm easily pleased . Looking forward to seeing the pictures :)cheers
Given your ever argumentative suspicion, how will I ever be able to prove to you that the pics are not taken directly from my signal generator?
As we both know, anybody that has a scope and a digi cam can do that, especially if he's profficient in MSPaint... :-)
(You got a chuckle out of me on that one...)
It's a futile exercise. Just take my word for it...
Never mind , I'll leave you to your simulations . Just make sure you use a scope and sig gen to take your measurements next time .
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