Kerry Wong did a teardown of an EC600-90 electrophoresis high voltage power supply: Electrophoresis power supplies are commonly found in biology and other life sciences laboratories. These power supplies are usually capable of supplying high voltages and high currents required for gel electrophoresis–a method used for separating DNA, RNA and other protein fragments based on […]
Kerry Wong did a teardown of a Marconi 2305 modulation meter: I picked up a Marconi 2305 modulation meter off eBay the other day. As the name indicated, a modulation meter is used to measure the modulation characteristics of a source signal. The Marconi 2305 is capable of measuring amplitude/frequency and phase modulated signals from […]
LogiMetrics A300/S TWTA teardown by Kerry Wong: I just picked up a LogiMetrics A300/S 2 GHz to 4 GHz (S band) traveling wave tube amplifier (TWTA) on eBay. I had done an extreme teardown of an HP 493A TWTA a while ago and it was quite fascinating to see what’s inside of a TWT. This LogiMetrics […]
Here’s a tear down of a crystal oscillator and a look at the silicon controller from Electronupdate: Inside is a ceramic circuit board. Ceramic has a low coefficient of thermal expansion which is probably very desirable here. It will also not absorb moisture. All of this would affect the frequency. More details on Electronupdate blog. Check out the […]
Kerry Wong did a teardown of an old analog piezoelectric vibrating gyroscope: Gyroscopes nowadays are based on micro-electro-mechanical systems (MEMS) technology. They are low cost and extremely miniaturized. A device combing both a three-axis gyroscope and a three-axis accelerometers (sometimes these devices are referred to as 6DOF devices) such as the MPU-6500 for example can be […]
A look at the Dashcam GPS module by Electronupdate: After a 4 year run the dashcam on my car stopped working: a fault seems to have developed in the power system. It was mounted to the window by what I thought was just a simple mechanical mount… on further analysis it became clear that the GPS […]
Kerry Wong did a teardown of an Array 3711A 300W electronic load: I have made many electronic loads in the past. For instance this simple harddrive cooler housed small dummy load, this more sophisticated constant current/constant programmable load and this heavy-duty electronic load that is capable of sinking over 1kW under peak load. In this […]
Kerry Wong did a teardown of an Agilent 66312A dynamic measurement DC source: Typically, a lab power supply can only operate within a single quadrant. Take a positive voltage power supply for example, it can only output or source current. If any attempt is made trying to sink current into the power supply by connecting […]
Microsoft “Intellimouse” teardown from Electronupdate: Before the advent of optical mice, the go to technology was a steel ball which moved two drive shafts to indicate position. A good example of this is this Microsoft “Intellimouse”. As expected the electronics are built around a small micro controller Check out the video after the break.
Kerry Wong did a teardown of a BK Precision 1696 programmable switching power supply: My original plan was to find a replacement LCD and restore the unit to its original full functionality. But the LCD used in this unit is likely specifically made for the 169X series of power supplies and through some initial research […]
A review and teardown of a cheap Hall effect clamp meter (ACM03 Plus) from Kerry Wong: I recently purchased a BSide ACM03 Plus clamp meter so that I could do some high current measurements for my tab welder project. This meter can be bought on eBay for around $25, which makes it one of the […]
Kerry Wong did a teardown of a battery adapter for the Sony A6000 mirrorless digital camera and measured the poweroff current draw of the the camera: With the battery adapter on hand, I decided to take a look at what’s inside and then use the adapter to measure the power-off/stand-by current of the Sony […]
A teardown video from Electronupdate: The CMOS version of the commercially significant 6502: a processor architecture which launched the personal computer era. This particular version was plucked off of an embedded industrial controller… a place where this processor still finds design wins.
Tutorial, experiments and teardown of a 77GHz automotive FMCW radar module from The Signal Path: In this episode Shahriar explores the principle operation of automotive FMCW radars. Thanks to a donated automotive radar module, various components of the system can be examined and explored. The PCB reveals three die-on-PCB ASICs responsible for generating and receiving 77GHz […]
Teardown and analysis of a bad electrolytic capacitor from Electronupdate: So, there sitting in a dumpster is what looks like a perfectly good monitor… some of the protective plastic on the base was never even peeled off. A quick power up showed why it was tossed: it simply did not turn on. I had been […]
Ken Shirriff did a teardown of a Sonicare electric toothbrush: The photos below show the top and bottom of the toothbrush internals. I expected to find a simple, low-cost mechanism, so I was surprised at how much complexity there was inside. The vibration mechanism (right) is built from multiple metal and plastic parts screwed together, requiring […]
Electronupdate did a teardown and analysis of a cheap four function calculator: It’s such an amazingly old looking die Even with 400x magnification it would not be too hard to reverse engineer back to a schematic! This must be a very old design indeed. When one thinks of high-tech it’s always the new-new thing… however […]
A RFID transit pass teardown from Electronupdate: Here is the die photo: super tiny. I bet they get thousands of dice off of each wafer. Looks like it’s a protocol called MIFARE. Vendor of the chips is NXP. I think it’s their ultra light family The amazing bit is that a card is printed with […]
Dewalt DW9118 battery charger teardown video from Electronupdate: Tear down of a failed Dewalt DW9118 charger. A look at the circuit board, the fuse, circuit topology and a decap an analysis of the Zilog Z86C04 controller. More info at Electronupdate blog.
Here’s another great video teardown from TheSignalPath: In this episode Shahriar repairs an Anritsu 37347A 20GHz Two-Port Network Analyzer. The unit does not boot up and as a result its internal state is unknown. The boot fault is traced to a bad RTC module which has a built-in integrated battery. A replacement unit is located […]