As I alluded to earlier, there are a thousand options that I want to try with the Songbird. I only got through a third or so of them before I stopped writing and this is nearly the smallest simplest amp you can make (although I have a plan there too!)
Now many of the options that [...]
Entries from December 18th, 2008
Introducing The Amp Computer!
December 18th, 2008 · No Comments · Amp Computer, Gear, Songbird
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We're Back!
December 15th, 2008 · No Comments · Uncategorized
I got the cutline theme to work again. Now I just gotta find out where the images ran off too.
It’s nice to be back.
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Ever Hear of Analog Computers?
December 13th, 2008 · 2 Comments · Amp Computer
Analog computers are way way old school. Essentially you would wire up circuits to do math functions and when you put a signal in, the voltage out was the answer. It could do multiplication, addition, integration, differentiation and other functions. The answer was visible on an oscilloscope screen (often included).
This is a Polish Model (from [...]
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Songbird : Requirements III – 2nd Preamp Stage
December 13th, 2008 · No Comments · Uncategorized
2nd Stage
Not sure here. In fact, I have to admit to a bit of confusion. See the output of a guitar pickup is roughly 0.5V peak to peak. Maybe as much as a volt on a high output pickup. The gain of the first stage is roughly 40 or more. Now this [...]
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Songbird : Requirements II – Pre Amp Bias
December 13th, 2008 · 2 Comments · Amp mods, Gear, Songbird
Ok, so clean power and rectified heaters and some other stuff were covered in the previous requirements post.
Tube Biasing – 1st Stage
As I understand it from my readings, the standard way of biasing, self biasing, is a complex reaction. Essentially as the power drawn from a tube increases, the bias goes more negative, somewhat [...]
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Gonna look funky for a while
December 13th, 2008 · No Comments · Uncategorized
Wordpress is up to 2.7 but my favorite theme is not ready. Bear with me, it shouldn’t be long.
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