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The DIY soldering robot which we have been building in our spare time over the past few months is now working and we have been able to solder some test Raspberry Pi expansion board headers with the machine. [ ]

The Muddy Basin Ramblers (http://www.muddybasin.com / https://www.facebook.com/muddybasinramblers) recently recorded their new album at Soundkiss Studios ( www.soundkiss.tw / www.facebook.com/soundkiss ) here in Taipei. Part of their gear consists of a vintage ribbon microphone fed into an old tube pre-amp, and unfortunately this was proving to be a bit difficult to control. According to Alex from Soundkiss, “ That OP 6 is a beast of a pre amp- it is always eager to distort and get dirty sounding. Without the attenuation, I have had to ride the gain control between 0 & 1 on the dial to get a usable tone, and a fraction of an adjustment can make a huge difference.” So today’s post is about how we made some attenuators to go between the mic and the pre-amp in order to calm things down a little bit. Firstly a little definition may be in order. An attenuator is basically the opposite of an amplifier. Its purpose is to reduce the amplitude of an electronic signal, without distorting i...

This is a do it yourself wireless hardware keylogger project, consisting of a logging unit with a 2.4GHz transmitter, and a USB-based receiver. The project includes the schematics, PCB design, firmware, software and lots of additional files and data. A wireless keylogger is a perfect solution for monitoring user activity, at very low risk of disclosure, is a purely electronic device, so no access to the operating system is required. The Wireless Keylogger consists of two main building blocks: the transmitter, and the receiver. The actual keylogging takes place in the transmitter, which is in fact a PS/2 hardware keylogger, with a built-in 2.4 GHz wireless module. Captured keystroke data is transmitted through the radio-link in real-time, rather than getting stored. The receiver on the other hand, is a wireless acquisition unit with a USB interface. All keystroke data received from the transmitter is sent to the host computer via USB. From the software side, this data is available throu...

Yeah, that’s right, “nut lubricant” (sometimes known as nut sauce). Get all your giggling out of the way before we continue. So you know how sometimes you’re tuning up your guitar and you hear this pinging noise and the string suddenly “jumps” up in pitch? That’s caused by the string getting stuck (sometimes known as "binding") in the nut slots. You can also encounter it when using a tremolo. My usual fix for this is to widen the nut slots slightly using nut files. However, today I’m going to show you another solution that can often work instead. We’re going to make a lubricant to put in the nut slots. This is especially useful for tremolo-equipped guitars. Here's our patient for today. It's a late 80's Fernandes "Limited Edition" Strat. Beautiful guitar, but a terrible case of "pinging" at the nut. We don’t need much for this, just some graphite (courtesy of a pencil lead) and something to hold the powder together (petroleum jelly). Some sandp...