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Posts Tagged ‘review’

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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Posted in Teardowns | No Comments »

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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Posted in Teardowns | No Comments »

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 »

Elektor 500ppm LCR meter case tips

Friday, April 1st, 2016

NopHead wrote a blog post review of Elektor 500ppm LCR meter: I recently bought a 500ppm LCR meter from Elektor because I didn't have anything for measuring inductors or the ESR (equivalent series resistance) of capacitors, both of which are important for modern electronics, particularly switch mode regulators that have become ubiquitous....

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Posted in tools | 5 Comments »

FLIR MR160 thermal imaging and moisture meter review, teardown and experiments

Monday, January 11th, 2016

Another great video review from TheSignalPath: FLIR MR160 Thermal imaging and moisture meter review, teardown & experiments In this episode Shahriar takes a close look at the FLIR MR160 Thermal Imaging and Moisture Meter. Featuring Infrared Guided Measurement (IGM) technology powered by a FLIR Lepton® thermal imaging sensor, MR160 helps you...

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Posted in Teardowns | No Comments »

CSI Premier 75W and Hakko 936 solder station teardowns

Thursday, January 7th, 2016

Todd Harrison did a teardown of the CSI Premier 75W and Hakko 936 solder station: I did the teardown of the CSI 75W solder station as well as the Hakko 936. The Hakko of course had all analog circuits using operational amplifiers and potentiometers as well as a temperature sensor in the...

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Posted in Teardowns | 4 Comments »

DirtySLA first impressions

Tuesday, December 29th, 2015

new299 tried out dirtySLA and did a quick video review.  

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Posted in Videos | 1 Comment »

Keysight EXA Signal Analyzer/Spectrum Analyzer review, teardown & experiments

Monday, December 28th, 2015

Another video review from TheSignalPath, Keysight EXA Signal Analyzer/Spectrum analyzer: In this episode Shahriar reviews the Keysight EXA Signal Analyzer / Spectrum Analyzer (N9010A). The X-Series Signal Analyzers and Spectrum analyzers from Keysight are compared against each other. The EXA is a general purpose spectrum analyzer with extensive applications. The...

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Posted in Teardowns | No Comments »

Control your Arduino over the Internet using Blynk

Saturday, December 26th, 2015

John Boxall from Tronixstuff has written an article on using Blynk with Arduino: There are many ways of remotely-controlling your Arduino or compatible hardware over the Internet. Some are more complex than others, which can be a good thing or a bad thing depending on your level of expertise. Lately we’ve become...

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Posted in Arduino, tutorials | No Comments »

X-Carve CNC mill build log & review

Monday, November 30th, 2015

Jeremy Blum writes: A few months ago, I built and reviewed the Shapeoko2 CNC mill from Inventables. Now, I’m back to review its successor, the X-Carve. The X-Carve features new-and-improved mechanics, a much sturdier spindle mounting system, and a myriad of other improvements that make it easier than ever to...

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Posted in tools | No Comments »

Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments

Friday, November 20th, 2015

Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments from TheSignalPath: In this episode Shahriar takes a close look at the top-of-the-line Rigol DSA875-TG 7.5GHz Spectrum Analyzer. This unit which, offers a built in tracking generator for the full frequency range, has a portable form-factor. I...

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Posted in Teardowns | No Comments »

Radio thermostat CT-50 review and install

Friday, November 6th, 2015

Felix of LowPowerLab writes: I mentioned before that there’s added support for HTTP requests in the gateway interface. That allows using things like wi-fi thermostats, and this story is a review of how I did just that. I wanted to integrate the home thermostat into the Moteino IOT Framework Gateway...

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Posted in repair | No Comments »

Teardown, repair & analysis of a Rohde & Schwarz FSH3 3.0GHz portable spectrum analyzer

Thursday, August 6th, 2015

A teardown and repair of a Rohde & Schwarz FSH3 3.0GHz portable spectrum analyzer from The Signal Path: In this episode Shahriar examines a faulty R&S FSH3 100kHz – 3.0GHz Portable Spectrum Analyzer. This exceptionally dirty unit does not power on and is missing a power supply and battery. After...

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Posted in repair, Teardowns | No Comments »

Review: Dirty Circuits Done Dirt Cheap

Monday, July 20th, 2015

DirtyPCBs detailed review by Gee_Rabid_Inventor:  Often design and research is and expensive business, especially when dealing with technology that your are unfamiliar with. A big proportion of this is PCB manufacture and I have spend a few years looking for a low cost reliable method for PCB production. The most...

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Posted in DirtyPCBs.com | 2 Comments »

RFM26W Breakout Board – First DirtyPCB manufacturing service test

Tuesday, June 23rd, 2015

Kai Bader's first PCB manufacturing run with DirtyPCBs: The PCBs are well produced, no “dirt” besides a bit of dust from my side. A few tiny scratches that did not affect the board. The silk screen is clearly readable. Details at Kai Bader's blog.

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Posted in DirtyPCBs.com | 3 Comments »

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