Free PCB builder extraordinaire Kenneth did an extensive teardown of an HP ProCurve 2824 Ethernet Switch. He analyzes the PCB piece by piece, explaining the smaller function blocks and how they fit together. So that is how all of the internals of … Read more
Category Archives: Teardowns
Gelbanana had some free time on his hands and he decided to try and repair an old Weller DS701E soldering-desoldering station he had laying around. The problem was diagnosed to a couple of bad capacitors. After a quick replacement, the … Read more
Presslab tears down the Weller WX 2021 soldering station. He is hunting for the pinout of the front panel serial connector. He was able to identify the serial IC used, and with it the pinout. Via the forum.
Anton Gorbunov did a teardown of his Nexus 7 dock and discovered that there are only some passive components on the PCB. He notes that with some pogopins it should be easy to make your own Dock. Via the contact … Read more
Kenneth takes apart a few old “tube” radio receivers and finds 8 Henry inductors inside, which is several orders of magnitude more then regular inductors we’re accustom to. He proceeds to hook it up to a 10 uF capacitor, and … Read more
Mat received his open 7400 contest prize, the Analog Discovery bench tool. He was quick to tear it down and find out how it ticks. The brain of the beast is a Xilinx Spartan-6 FPGA which works in conjunction with … Read more
Sebastian, amateur radio operator KF5OBS, offers up this under the hood look at a C-Band DRO LNB. “A low-noise block downconverter (LNB) is a key element in a satellite receiver system and is responsible for converting the relatively high frequency … Read more
Arhi tears apart the Voltcraft PS-1305/230 isolated 0-230 volts AC 4.5 Amp power supply. It also comes with a 0-30V 5A, and 5V 3A DC channels. The laboratory power unit is a combination of direct current power unit and safety … Read more
Hak8or got his hand on an X-ray bone mineral density assessment machine someone dumped. It seems the only problem is a faulty temperature sensor, but Hak80r decided to break it down and share the pictures with us. For an in-depth … Read more
Kenneth scored two HP universal frequency counters and popped them open. One generates the timebase from an uncompensated oscillator in a TO-5 package, while the other uses a large temperature controlled oven oscillator: here is both of my counters measuring … Read more
Mick bought and disassembled a Tektronix 465 oscilloscope. It’s a 100 MHz dual trace, dual timebase analog scope. He points out that most of the transistors are socketed instead of soldered. More pics below. Via the forum.
Philip scored a vintage Sanyo 4 function calculator in a local thrift store. He opened it up and was pleasantly surprised with 8 Nixie tubes. You guys wont believe what i just scored from a local thrift store [selling second/third/fourth … Read more
Raj has been designing a soldering station that would support Weller’s RT type tips with temperature sensor and heater built into them. A stereo-type jack on the iron connects them to the soldering station cable. So far Raj has reverse … Read more
Schazamp bought a cheap Kendal 852D+ 2+1 hot-air and soldering iron rework tool. He opened it up and took some pictures. Most of the 852-whatever clones look pretty similar inside, there’s probably one factory churning out clones under a bunch … Read more
Weller WSM 1 is a 40w soldering station that drives WRMP soldering pencils with RT type tips. Inside you’ll find an LCD, a few ICs, and a few discrete components. It’s powered by a laptop power supply, and that the heater … Read more
Hak8or got his hands on a few broken down TVs. One of which is a Dell W3000 set. It’s panel was intact so he figured it was worth to try and fix. After some probing he figured out there was … Read more
EETimes has posted their video of the teardown of the Azio USB 3.0 3.5″ HDD enclosure, one of the first devices using USB 3.0 (4 Gb/sec.), with a street price of about $25 USD.
Hotsolder repaired his malfunctioning Rigol, A bad rotary encoder can make your tools useless in worst cases. Fortunately it is an easy fix, he has created a slide show demonstrating just how easy it is. Via Hack a Day
Any car newer than 1995 has a fairly sophisticated computer used to monitor various systems ranging from accelerator pedal position to catalyst efficiency. This is a brief introduction to one example of the hardware used to diagnose automotive systems.