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So what's causing the rumble? Can you turn off the AC/fridge while tracking? Or do you live near a railyard, that you can't turn off? I wonder if anyone makes inline HPFs like the little inline pad jams Indeed they do: Shure A15HP. There's an article about building your own at Ethan Winer's website:...

If you're using Neutrik connectors, they've got DXF files on their website for a bunch of the connectors...if they don't have the DXF, it's sometimes because it's a variant of some other connector For instance http://www.neutrik.com/Secure30/getMedia?encoding=ISO-8859-1&client=neutrik&saveAs=true&sa...

If you want to make tapes that are interchangable with other machines, or you demand known good fidelity from the deck, you need to calibrate it. If you're just puttering with a tape machine, go nuts without. You need to buy a new one because it needs to be a known good reference...if it's flawed, t...

One thing about a real "tweaker" is that they're usually plastic or fiberglass or something non-conductive like that. Only the blades are metal. This keep you from shorting out stuff if it happens to fall anywhere other than the adjustment pots...or the body of it has to go deep inside to get to the...

It's needn't match exactly, but the wart should meet or exceed the mA demands of the fan. For instance, if the fan says 100 mA, a 150 mA, even 500 mA capable wart will be fine. It doesn't make much sense to get one what's way over spec, though. You'll be paying more for capacity that you don't need....

can I safely wire a simple resistor in-line with one or both of it's power leads to bring down the 120 volts AC that comes out of a standard wall outlet to a useable 12 volts? Only if you ignore the difference between AC and DC...and take the word "safely" out of the question. Temporarily ignoring ...

Look for DC offset voltage in the circuit. The signal lines should be at ground when all is quiet. If some parts of the circuit rest at ground, and others don't, it'll pop or thump when things are switched, as the DC comes through.

What device is driving the speakers? Any idea about that the circuit topology is (sometimes the specs in the manual might say something like "47 ohm output impedance, cross-coupled active balancing circuit")? Are both sides of this run truly balanced? Do you have written specs for both sides of the ...

I rent in an indutrial building, and here's some of what I'll be evaluating in my next space: The neighbors are fairly important: that they're not going to mind any leaked noise, that studios may attract some rowdy or shady figures, and keep pretty strange hours. Also, in the other direction with th...

looking at buying one of these for the new space my partner and i are putting together - and had a friends throw a bit of a monkey wrench into it by suggesting that i wouldn't be able to use a standard data-type ethernet switch to run multiple HSR6's through it. That's right. A data-type switch ass...

Is there a specific reason that you need 100% "red book" compliance? My understanding is that the bona fide Red Book spec is a little long in the tooth, and some of those rules can be bent...things like a maximum of 99 tracks, a minimum track length of 2 seconds, etc. I think even CD text, although ...

So go track down some Neve 1272's or 1073's. The 24V switcher will be just the ticket for them!

Old caps can do everything mentioned here...loss of low-end, additional 60Hz leakage, and possibly "popcorn" noise induced into things. The primary thing that kills electrolytic caps is heat. Running in a warm environment can do it. If they're being used to soak up supply ripple, they'll heat up on ...

i am checking the voltage from + and - of the output of the power supply. it comes up 24.3vdc. OK. So what do you get if you measure between the ground connection and the + output? Then check between ground and the - output. Check it before and after things have shut down, and report back. looked a...

If that link you sent earlier is correct, the power supply you have has two outputs, labeled + and -, and no output marked ground. You'll need all 3 to get those modules going. That's what's called a "floating output." The supply only really produces one voltage, determined by how it's connected. Th...