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Posts Tagged ‘review’

Tear down of a super capacitor

Tuesday, January 10th, 2017

[embed]http://www.youtube.com/watch?v=8Uxd00N3CRc[/embed] A teardown video of a 1 Farad super capacitor from Electronupdate: In a recent video on the tear down of an electrolytic cap a viewer was wondering what a super capacitor looks like. They have much more capacitance: 10,000 time more on average for the same volume. Surely this means the...

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Curtis 1231C-8601 500A PWM DC motor controller teardown

Monday, January 9th, 2017

Jay did a teardown of a Curtis 1231C-8601 500A PWM DC motor controller: The Curtis 1231c-8601 power board is relatively simple. It uses 18 MOSFETS in parallel to switch current from the motor- terminal back to the battery- terminal (the motor+ lead is already connected to battery+). The MOSFETs it uses...

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Solar battery charge controller teardown

Monday, January 2nd, 2017

[embed]http://www.youtube.com/watch?v=2vCQJtN3Obk[/embed] A teardown video of a solar battery charge controller from Electronupdate: A solar battery charger: one side goes to a Solar Panel, the other to a lead-acid battery. A charge controller allows the battery to be safely charged. Snagged off of Amazon. Seemed really cheap at $17.36. A look...

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Mastr III repeater teardown

Tuesday, December 27th, 2016

[embed]http://www.youtube.com/watch?v=grzvNoBKWuo[/embed] Kenneth Finnegan writes, "I recently purchased a pallet (!) of Mastr III repeaters for some parts. These are really unique radio systems since their so modular, so I thought you'd enjoy a video where I tear one apart and talk through its basic theory of operation." More details at Kenneth's...

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Teardown of a Vivitar Rapid battery charger

Wednesday, December 14th, 2016

Kerry Wong did a teardown of a Vivitar rapid battery charger for the NP-FW50 lithium-ion battery pack used in Sony A6000 digital camera: The circuit board itself though looks surprisingly clean and well designed. It does not use any dedicated lithium ion battery charging ICs however. Rather a MC34063A buck/boost...

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Posted in Teardowns | 1 Comment »

LED candle effect: Tear down and decap of a controller

Monday, December 12th, 2016

[embed]http://www.youtube.com/watch?v=ndXQex_spS8[/embed] A teardown video from Electronupdate: A dollar store item which implements a flickering candle effect using and LED. A look at the technology: linear feedback shift register or ROM based? Let's decap the controller and take a look at the silicon die to find out! More details at Electronupdate blog.

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Posted in LEDs, Teardowns | No Comments »

GPS Disciplined Oscillator review and teardown

Wednesday, November 16th, 2016

Andy Brown did a teardown of a GPS Disciplined Oscillator: The design did actually surprise me. I was expecting to see an OCXO pulled from something else together with a modern GPS unit and an MCU to co-ordinate the synchronisation all mounted on a custom PCB. What we’ve actually got is...

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Posted in Teardowns | 1 Comment »

XBOX 360 GPU die decap: A look at the graphics processor silicon

Friday, November 11th, 2016

[embed]http://www.youtube.com/watch?v=vQ9OyubxoJQ[/embed] A teardown video of an XBOX 360 and analysis of GPU silicon die from Electronupdate. So, what makes an XBOX tick? One of the most notable parts will be the graphics sub system... and at the heart of it, the GPU. The GPU die is bonded onto a substrate...

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Tear down of a scientific calculator Integrated Circuit

Tuesday, October 25th, 2016

[embed]http://www.youtube.com/watch?v=_wza8DZtXuo[/embed] A detailed video teardown of a scientific calculator Integrated Circuit from Electronupdate. More info at Electronupdate blog.

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Review of NeoDen 4 pick and place machine with vision system

Saturday, October 1st, 2016

Ray Wang wrote up a review of NeoDen 4 pick and place machine with built-in vision system: Recently NeoDen released a new model called NeoDen 4 — it’s their first desktop model that has built-in computer vision system. The vision-based alignment makes it possible to place fine-pitched components with minimal manual...

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Posted in tools | 1 Comment »

Teardown of a Static fieldmeter

Thursday, September 8th, 2016

A teardown of a Static fieldmeter from Kerry Wong: Static fieldmeters (or electrostatic fieldmeters) are typically used for non-contact measurements of the electrostatic field strength (usually in kV) of charged objects. These are highly specialized test instruments and most hobbyists probably seldomly have the opportunity of coming across one. So in this...

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Teardown and analysis of an Agilent 86109B Optical/Electrical DCA-X oscilloscope module

Wednesday, September 7th, 2016

Teardown and analysis of an Agilent 86109B Optical/Electrical DCA-X oscilloscope module from The Signal Path: In this episode Shahriar presents the inner workings of an Agilent 86109B optical/electrical DCA-X oscilloscope module. This particular model offers up to 50GHz of electrical bandwidth and an optical input capable of receiving up to...

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Bi-directional voltage level translator – Board house test

Wednesday, August 17th, 2016

Lukas Fassler from Soldernerd shares his experience with DirtyPCBs: I can think of a lot of situations where it could be useful. But the main reason for this project was to gain some experience with getting a PCB professionally manufactured by a board house. For several years I have done my own...

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Posted in DirtyPCBs.com, PCBs | No Comments »

Amazon’s cheapest multimeter teardown: The DT-830B

Wednesday, June 8th, 2016

A teardown of Amazon's cheapest multimeter the DT-830B by Electronupdate: Purchased the cheapest multimeter I could find so I could extract the integrated circuit. A surprisingly simple IC! The actual meter design was much as expected. Poor attention to detail for higher voltages, concerning lack of fuses on current measurements......

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Posted in Teardowns | 3 Comments »

3D Printer extruder review

Tuesday, June 7th, 2016

Bajdi wrote up a review of 3D Printer extruder: End of last year I decided to build a new 3D printer. At that time I already owned a very cheap Chinese Prusa I3 printer, it worked, but wasn’t a very reliable machine and it was dead slow. As I did not...

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Posted in 3D fabrication | 1 Comment »

Dirty PCBs review from Big Mess o’ Wires

Friday, June 3rd, 2016

Dirty PCBs detailed review by Big Mess o' Wires: Now for the key question: were the boards any good? From my inspection, I’d say mostly yes. I spent a long time examining the boards under 10x magnification, and comparing them to my original EAGLE files, and to the Gerbers using gerbv....

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Posted in DirtyPCBs.com, PCBs | No Comments »

Analysis, operation, and modification of a switchmode power supply (SMPS) for variable output voltage

Wednesday, May 18th, 2016

Lindsay Wilson did a teardown/modification of a Chinese SMPS to allow an adjustable output voltage: I'm currently working on a product which uses a size 2430 "hobby" brushless motor and 25A electronic speed controller (ESC). In its "intended" use, the controller runs from two lithium-ion batteries with a total voltage...

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Posted in Teardowns | 1 Comment »

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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Inside card sorters: 1920s data processing with punched cards and relays

Monday, May 2nd, 2016

Ken Shirriff did an in-depth write-up of the punched card sorter: Punched card sorters were a key part of data processing from 1890 until the 1970s, used for accounting, inventory, payroll and many other tasks. This article looks inside sorters, showing the fascinating electromechanical and vacuum tube circuits used for...

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Posted in vintage | 1 Comment »

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