And two years after walkman's post...
In 2018 I designed and built a roughly quarter-watt, all-tube guitar amp. I used a a 6AQ6 triode, and a...
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My go-to box for this sort of thing is an ART Tube MP/C ( https://www.sweetwater.com/store/det...-art-tube-mp-c ). It's a nice little mono preamp...
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Thank you! (So sorry I missed seeing this post for two weeks!)
-Gnobuddy...
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Nowadays the amp weighs 3 lbs, makes 1000 watts, and is the size of an ice-cube. But the speaker/cab is still the size of a 'fridge and weighs 200 lbs......
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A couple of years ago, I found out for the first time about the Warsaw Radio Mast, which was the worlds tallest structure for many decades ( https://en.w...
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There are multiple types of right-angle clamps that make this job much simpler, and much less error-prone.
Here are a few:
...
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Well, the very first sentence does say "Our vacuum tube industry is manufacturing hundreds of types of radio tubes, many of which are obsolete."...
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+/- 120 volts? Yikes. Definitely in dangerous territory, and capable of nearly a kilowatt into 8 ohms. I've never worked on an amplifier with that much power....
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About ten or twelve years ago, I was soldering together a rechargeable battery pack using A123 LiFePO4 cells extracted from a 32 volt Dewalt cordless battery...
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There are a lot of days on which I feel like Rip Van Winkle, having woken up in an alien future world where so much has changed that nothing makes sense any...
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Speaking only for myself, the main lesson I learned from that story was to actually pay attention to the stability of the chassis I'm working on - before...
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The rubber apron sounds like an excellent idea.
One of the scary stories I read on the 'Net was about a guy who was working on a...
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To err is human, right? It happens to all of us, we either get careless, or we get tunnel vision. The best we can do is set up procedures so that any single...
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That sounds like a good idea!
On the Aussie Guitar Gearheads forum, new DIY builders are encouraged to wire a neon-bulb indicator across the...
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Unlike most of you here, I only began working with valve electronics a few years ago. Horror stories I found on the Internet, similar to the ones you've all...
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Well, that changes things!
Now you have one-third of the total signal voltage across the 4 ohm speaker, and two-thirds of it across the 8...
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Agree with you totally. But Daz did say "of the same model". Speaker designers often try to make their 4 and 8 ohm versions of the same speaker...
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All else being the same, and assuming the speakers are in parallel, the 4 ohm speaker draws double the power from the amplifier.
Double the...
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Exactly, and it is only those few percent of people who make life worth living!
Keep in mind too, countries that are run entirely by large...
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Looks good, thanks for sharing! As it happens, I'm just at the tail end of an amp project of my own, and am trying to figure out how to make a badge for it...
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