"It's not a bomb!"
Posted: 2006-04-08 10:15am
One of my recurring dreams is coming home to find a SWAT team and bomb squad camped out in my appartment because someone mistook my audio gear for a bomb...
Get your fill of sci-fi, science, and mockery of stupid ideas
http://stardestroyer.dyndns-home.com/
http://stardestroyer.dyndns-home.com/viewtopic.php?f=14&t=89209
That's nothing. This guy I know has his house filled with gigantic transistor radios. The living room has about a dozen, the den has about a dozen, and the basement has several dozen. And these radios are huge; like the size of small refrigerators.Mrs Kendall wrote:What a messy looking home stereo system
I truly feel for J and muse who have to look at that everyday.
Looks like a bunch of massive capacitors and a few big-ass inductors wired to a circuit board and bolted to a piece of a table.Rye wrote:So what the hell is it?
yep. and those capaciters have a very real possibility to go bang if wired wrong. It may not be a bomb but man put that thin in a box! If only to cover all those bare wires!TheBlackCat wrote:Looks like a bunch of massive capacitors and a few big-ass inductors wired to a circuit board and bolted to a piece of a table.Rye wrote:So what the hell is it?
It's a vacuum tube headphone and speaker amplifier.Rye wrote:So what the hell is it?
Amp schematicBraedley wrote:Can I have the schematics for that?
Vacuum tubes are actually still widely used in many applications, particularly with high-end audio equipment. They're somewhat easy to get.Crossroads Inc. wrote:Vac-Vacuume tubes? Wow, WOW! My respect for you just soraed, seriously where does one even get Vacuume tubes these days?
Crossroads Inc. wrote:seriously where does one even get Vacuume tubes these days?
From VacuumTubes.net of course, and my local electronics surplus stores.Singular Quartet wrote:That's a good question, actually. I'd like to now, since it interests me to actually build a new amplifier, rather than use the pieces of shit I have now...
Right. Don't worry, your secret war against Quebec is safe with us. Which part is the detonator?aerius wrote:It's a vacuum tube headphone and speaker amplifier.
Tansistors are a rape against art for music electronics.phongn wrote:Ya'know, we have these magic things called transistors now
I have those too. The circuit board near the top is a Kevin Gilmore headphone amp, and there's another one of those inside the box. But tubes glow in the dark and look cooler.phongn wrote:Ya'know, we have these magic things called transistors now
He says he'll eventually stop tweaking it and build a pretty case for it, unfortunately I don't see that happening anytime soon. I have to admit though, it does sound great.Mrs Kendall wrote:What a messy looking home stereo system
I truly feel for J and muse who have to look at that everyday.
Just like Vynle producers better music then CDs.Spanky The Dolphin wrote:Tansistors are a rape against art for music electronics.phongn wrote:Ya'know, we have these magic things called transistors now
Did you know that people have made processing circuits that can duplicate the distortion products of vacuum tubes in transistor amps? Transistor amps only sound really bad when you drive them past their design limits, and in general, you can make a transistor with far more peak power output than a vacuum tube amp.Spanky The Dolphin wrote:Frankly I'd never buy a digital electric guitar setup, that's sure as hell for certain. The amp's use of vacuum tubes is a major aspect to their sound.
Depends. At the power levels required for most speakers, you're right. At the levels needed for headphones or pre-amps (fractions of a Watt), vacuum tubes are better because of their superior low-level linearity. You can see this by comparing the plate voltage curves of a tube and the transistor. The former will have parallel and mostly straight lines all the way down to the cutoff, while the latter has curved lines that become non-parallel near cut-off. Which means tubes perform best at low levels while transistors need to be cranked up a bit to work well. The linearity means you can do away with negative feedback altogether, which means better phase margins, slew rates, much reduced high order harmonic distortion and more natural sound.Alyeska wrote:Vacume Tubes produce music that is of less quality then a transistor. A Transistor produces music as close to the real thing as possible. People who prefer vacume tubes are the sort who prefer sloppy listening and can't actualy stand to listen to the real thing. You might prefer vacume tubes, but they produce a technicaly lower copy reproduction.
Haha, the empty promises Just kidding Sounds good but looks fugly rightJ wrote:He says he'll eventually stop tweaking it and build a pretty case for it, unfortunately I don't see that happening anytime soon. I have to admit though, it does sound great.Mrs Kendall wrote:What a messy looking home stereo system
I truly feel for J and muse who have to look at that everyday.