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Posts Tagged ‘teardown’

Teardown of a Marconi 2305 modulation meter

Wednesday, May 29th, 2019

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...

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Teardown of a LogiMetrics A300/S traveling wave tube amplifier

Tuesday, April 30th, 2019

 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...

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Crystal oscillator teardown

Wednesday, April 17th, 2019

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...

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Teardown of a Piezoelectric vibrating gyroscope

Wednesday, February 6th, 2019

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...

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Dashcam GPS module

Tuesday, December 18th, 2018

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...

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Teardown of an Array 3711A 300W DC electronic load

Thursday, November 15th, 2018

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...

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Inside a two-quadrant power supply – Agilent 66312A teardown and experiment

Tuesday, October 9th, 2018

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...

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Microsoft “Intellimouse” teardown

Monday, May 28th, 2018

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...

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Teardown of a BK precision 1696 programmable switching power supply

Thursday, November 9th, 2017

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...

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BSide ACM03 plus clamp meter review and teardown

Monday, July 24th, 2017

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...

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Posted in Teardowns | 1 Comment »

Battery adapter teardown and Sony A6000 power-off current draw

Wednesday, July 19th, 2017

  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...

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Posted in Teardowns | 4 Comments »

65C02: Tear down, a look at the CMOS version of the 6502 CPU

Thursday, July 6th, 2017

https://www.youtube.com/watch?v=qbaKfvPoNhY 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.

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Tutorial, experiments and teardown of a 77GHz automotive FMCW radar module

Friday, June 2nd, 2017

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...

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Bad electrolytic capacitor teardown

Monday, December 19th, 2016

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...

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Posted in Teardowns | 2 Comments »

Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging

Monday, September 26th, 2016

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...

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Posted in Teardowns | 2 Comments »

Reverse engineering a simple four function calculator: die decap

Friday, August 26th, 2016

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...

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Contactless transit card teardown

Monday, July 25th, 2016

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...

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Dewalt DW9118 battery charger teardown

Wednesday, July 13th, 2016

[embed]http://www.youtube.com/watch?v=h_xKzx_R840[/embed] 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.

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Teardown, repair and experiments with the Anritsu 37347A 20GHz Vector Network Analyzer

Friday, May 13th, 2016

[embed]http://www.youtube.com/watch?v=dwAieDTRMdQ[/embed] 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...

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Lockitron Bolt teardown

Wednesday, May 4th, 2016

[embed]http://www.youtube.com/watch?v=VNAsLy73E1g[/embed] The crew from Fictiv wrote in to let us know about their special edition teardown video of Lockitron Bolt, which includes insights from the co-founder on material decisions, engineering insights, prototype development, and lots more. More details at Fictiv blog. Via the contact form.

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