Got some old corded phones kicking around from the days before 3 and 4 handset cordless system took over? Why not make them useful again by making an intercom from the. Growing up I remember seeing all of the 2 and 3 station intercom system in the Radio Shack magazines, I always wanted a system in our house no matter how impracticable it would have been. In about 1/2
 Ok, it isn’t actually not a Long Nose Robot of Death even if that is what it looks like… 🙂 It’s a Raspberry Pi controlled Tank that can shoot BBs. This tank was mostly 3D printed and uses a Raspberry Pi since the original idea of using an Arduino was shot down due to lack of processing power. “What features I want this tank to have? Remote controlled
Over at The Signal Path Blog Shahriar Shahramian has a look at a Fluke 196B Handheld ScopeMeter that he purchased from an eBay seller. The meter was purchased for a few hundred dollars and was listed with a fault that is doesn’t power up. It didn’t come with probes, a back cover or the battery. Shahriar was ready for a full tear down and hopefully a repair but as
 The prize this week is an Arduino Pro Mini. This contest will run for one week (February 2 – 7, 2014). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing. Please do not give the answer in the comments. Send an email to contest
If you enjoy repairing electronic equipment have a look at bandersentv youtube channel. He finds all sorts of old tube TVs and radios, strips them down to nothing and upgrades them changing out old caps, resistors that have drifted in value and rebuilds tons of other components. This video is just a taste of his videos. If you think that some of the cheap Chinese electronics is scary when
Instead of keeping a dozen sizes of power resistors on hand to test your variety of power supplies an electronic load allows you to dial in the exact load you are looking for. This DIY 4 Channel Electronic Load that gelbanana built allows you to connect a bunch of different items to load test at once. The cabinet is recycled and a custom cut piece of clear acrylic is used
Kerry Wong had a few huge heat sink kicking around, instead of selling them for scrap aluminum he decided to build some useful lab equipment. The first one went into the DIY Electronic Load and the second was used in his DIY Lab Power Supply. DIY Lab Power Supply Build Details 1 DIY Lab Power Supply Build Details 2 DIY Lab Power Supply Build Details 3 Â “The voltage/current setting
